Uploaded April 2025 | Updated September 2026, 4 days ago
This is a tool-assisted walkthrough. No messing around or time wasting, no annoying commentary. Just a full devastation of every map.
This is Part 3 of my full walkthrough of Doom 2 for Sega Saturn. It completes each map with 100% kills and secrets on Ultra-Violence. It's not a speedrun, but is speed-oriented.
Note: this walkthrough uses fafling's fix patch v0.2, which can be found here: doomworld.com/forum/topic/86671-dissecting-sega-saturn-doom/?do=findComment&comment=2761792
Finally, fafling released patch v0.2. I was about to give up on waiting for it. The patch brings up solid performance optimizations as well as brings more good stuff into the game.
The only thing I don't really like (although, approve) is the tweaking of Spiderdemon because, unlike other changes, which restore unused content and polish the gameplay, this one actually alters it, which outlines the patch from the claimed "fix" category.
Timecodes
0:00 Intro
0:15 Main Menu, Password
0:25 Map 47 - The Citadel
5:09 Map 48 - Nirvana
7:35 Map 49 - The Catacombs
9:22 Map 50 - Barrels of Fun
12:32 Map 51 - Bloodfalls
14:54 Map 52 - The Abandoned Mines
18:36 Map 53 - Monster Condo
22:44 Map 54 - Redemption Denied
24:09 Ending
Emulator used: Bizhawk 2.9.1
Upscaled to 1440p using "Nearest neighbour" filter.
Other parts can be watched here: youtube.com/playlist?list=PL3V0eG1j-1vKN5143XJu33KGiXIwKu9cv
This is a tool-assisted walkthrough. No messing around or time wasting, no annoying commentary. Just a full devastation of every map.
This is Part 3 of my full walkthrough of Doom 2 for Sega Saturn. It completes each map with 100% kills and secrets on Ultra-Violence. It's not a speedrun, but is speed-oriented.
Note: this walkthrough uses fafling's fix patch v0.2, which can be found here: doomworld.com/forum/topic/86671-dissecting-sega-saturn-doom/?do=findComment&comment=2761792
Finally, fafling released patch v0.2. I was about to give up on waiting for it. The patch brings up solid performance optimizations as well as brings more good stuff into the game.
The only thing I don't really like (although, approve) is the tweaking of Spiderdemon because, unlike other changes, which restore unused content and polish the gameplay, this one actually alters it, which outlines the patch from the claimed "fix" category.
Timecodes
0:00 Intro
0:15 Main Menu, Password
0:25 Map 47 - The Citadel
5:09 Map 48 - Nirvana
7:35 Map 49 - The Catacombs
9:22 Map 50 - Barrels of Fun
12:32 Map 51 - Bloodfalls
14:54 Map 52 - The Abandoned Mines
18:36 Map 53 - Monster Condo
22:44 Map 54 - Redemption Denied
24:09 Ending
Emulator used: Bizhawk 2.9.1
Upscaled to 1440p using "Nearest neighbour" filter.
Other parts can be watched here: youtube.com/playlist?list=PL3V0eG1j-1vKN5143XJu33KGiXIwKu9cv
![[TAS] GTA: San Andreas PS2 - $999999999 in 17:38](https://i.ytimg.com/vi/SScSpgFse2s/mqdefault.jpg "[TAS] GTA: San Andreas PS2 - $999999999 in 17:38
This is a tool-assisted speedrun. All the details explained here: https://toolassisted.run/runs/M100066/
Emulator used: Chimera nightly-2026-09-08
Core: PCSX2
Render: Software (Native)
Video encoding command: -vf scale=3086:2160:flags=lanczos -crf 16 -pix_fmt yuv420p -b:a 384k -f mp4
0:00 Game Intros
1:20 Actual start
1:58 Bet 1
2:27 Bet 2
2:58 Bet 3
3:35 Bet 4
5:10 Bet 5
6:47 Bet 6
8:22 Bet 7
9:59 Bet 8
11:34 Bet 9
13:11 Bet 10
14:46 Bet 11
16:23 Bet 12
17:09 Bet 13
17:37 Stats and cash review")
![[TAS] TMNT 2003 GC - Stage 2: Donatello New Game](https://i.ytimg.com/vi/UIfkZ8_c8f8/mqdefault.jpg "[TAS] TMNT 2003 GC - Stage 2: Donatello New Game
This is a tool-assisted speedrun. Playlist with all stages: https://www.youtube.com/playlist?list=PL3V0eG1j-1vKfkxneY3XydESL0dxPb2JT
Area 1 - 1:09
This stage involves exclusive enemies: nanobots.
Blue nanobots have 30 hp, like Foot Ninjas, and they often attack, even if the player is far away. Luck manipulation works worse comparing to making ninjas not do backflips, but still it wasnt an issue.
From now on, regular white purple dragons are replaced with yellow ones. They are described above. They have 24 hp and take more time to spawn in. It took a lot of time for me to manipulate squads to have mainly green dragons, so I could kill them in 1 strong attack. The spawn randomizer is also described above.
Green mousers is another innovation. They also have 24 hp, which made me change my tactic to fight them.
The area is not optimized well. These loading sequences are inevitable on GameCube port. Here, they happened during the first Nano Robot boss fight. It has 140 hp. The barrel explosion is used for creativity. It doesnt save time because Nano has to finish his animations before breaking down.
Area 2 - 1:38
Subway and beyond areas involve big squads of green mousers. Since they cannot be destroyed in a single strong attack, I had to use a slower A-B combo to drain hp of all front mousers while not moving very match to retain their spinning trajectories, so the whole crowd would be destroyed.
The spinning combo ending also came in handy to destroy single enemies quickly, if I had enough time to perform it. This includes single mousers and blue nanobots inside mouser squads because it takes some time for destroyed nanobots to explode.
I had to spend the electric shurikens provided here, because Area 4 provides two pick-ups at the beginning, and you cant carry more than 2 sets of electric shurikens.
I got bad luck in the end regarding yellow punks. Maybe there was a way to avoid them, but I didnt manage to pull it off.
Area 3 - 0:35
I had to begin the area with some delay to manipulate the spawn of 5 green dragons. That saved a lot of time. Unfortunately, all other spawns were not that lucky, but I managed to pick optimal placements for yellow dragons, so it would be enough to do A, dash, B thing to kill a crowd.
Area 4 - 1:11
A new guest here: yellow nanobots. They have 48 hp.
I acquire 20 electric shurikens at the beginning. I spent some time researching and decided to spend 4 shurikens on two most time-consuming yellow nanobots because the time saves I got override possible time save in boss battles in Area 5. Most time was save from a singleton nanobot.
The spawn of 5 green dragons after the first squad of yellow nanobots was very lucky.
TODO: insert green mouser battle tactic.
Area 5 - 1:52
The first boss battle was completed with shurikens. Nano has 240 hp and its placed far away from me. If you attack it outside the screen, it wont wake up and play its running away sequence at the end of the fight.
Some time can be saved if there were only green dragons in squads, but not much time was lost.
After the big lava pool, near the squashing mechanisms, there are 3 barrels which would theoretically save time in destroying 6 yellow nanobots, but the pipes around them have wierd hitboxes and the barrels cannot be thrown anywhere. Its a trap for the player.
It might be possible to catch a right sequence for the squashing mechanisms and dash through them without losing time, but its complicated task for me to figure out their nature. Nevertheless, I passed the last squasher as soon as its enough open for me to dash through.
The second boss fight was formed around Nano boxing animation because its the fastest one.
With minor time loses and manipulations, its possible to destroy it with 10 shurikens with no boss animation played, but as I said earlier, I saved more time of destroying time-consuming yellow nanobots and 6 shurikens with melee attacks were just enough to drain all its health near the end of its animation.
Area 6 - 0:25
Oh boy, you havent learned anything!
Nano Ver.3 has its own table of damages.
TODO: insert damages and shurikens disadvantage
By math calculations, Donatello can destroy it in 6 full jump attacks which deal 4 hits each.
Its difficult to manipulate Nanos actions. The main priority was to prevent it from exploding because you must keep the distance for a while. Its invulnerable when it performs an attack, and it can do it as soon as its previous animation is over to become invulnerable once again.
The luck manipulation was not on my side again. I managed to get 3 hits from one of the jumps and had to jump at the ground to add up 1 more hit. Lets consider it 6,5 jumps.
0:00 Stage 2
0:27 Stage 2 Area 1 (1;09)
1:54 Stage 2 Area 2 (1;38)
3:47 Stage 2 Area 3 (0;35)
4:37 Stage 2 Area 4 (1;11)
6:10 Stage 2 Area 5 (1;52)
8:18 Stage 2 Area 6 (0;25)")
![[TAS] Doom GBA - E1M1 in 0:09 (+ Dead Man Walking glitch)](https://i.ytimg.com/vi/ULf1C6RItrs/mqdefault.jpg "[TAS] Doom GBA - E1M1 in 0:09 (+ Dead Man Walking glitch)
This TAS beats E1M1 quickly and performs newly discovered Dead Man Walking (Zombie, Ghost-zombie) glitch that lets you beat further maps much faster by walking through the walls.
8 secs is possible if we take an IL run, but I had to wait for some time to finish the level at the same frame as I die to make it work.
Barrels have just 10 HP in this port, so you can destroy one in one shot. Pistol damage here is dividable by 4. Its 4, 8, 12, 16.
The glitch is explained here:
https://www.doomworld.com/forum/topic/122764-new-glitch-in-doom-gba-breaks-the-full-game-any-world-record-once-again/
P.S: I named it Dead Man Walking to refer to the glitch in Max Payne 1 which has some similarities to this one.
P.S.S: I dont know when a full game TAS will come. I made this video just because of Trinity Sunday which makes Monday a day off (at least, for Ukraine). Unfortunately, I dont have much time on it, so the progress will be tardy for sure.
0:00 - Intro
0:18 - Gameplay")
![Orcs & Elves [Nintendo DS] - TAS Test](https://i.ytimg.com/vi/U_hrpj6U_Iw/mqdefault.jpg "Orcs & Elves [Nintendo DS] - TAS Test
Instead of porting Doom RPG and Wolfenstein RPG, we got just this. Thats right, Orcs and Elves was the only ids game which was eventually ported from Java Mobile to something else. And what a miracle, this port can be TASed.
At first, I planned a full game TAS on Hard where I kill all the monsters and find all secrets, but then I realized the games RNG is lame and DesMume cant handle the game properly and rarely goes out of sync because of hint windows. They sometimes pop up not at a consistent time which may lead to a desync if you load a savestate while skipping them.
RNG is unpredictable and the RAM search didnt give me any useful addresses which would help me with combat manipulations. I still dont understand what exactly is responsible for critical hits and misses. There are some kind of frame rules which change RNG, but I cant analyze them. My actions might affect the RNG as well, but I dont know for sure.
Briefly speaking, I need a skilled RAM searcher who would examine the RNG and provide useful addresses or, otherwise, its not gonna be a true TAS.
Considering that Orcs & Elves were made on Doom RPG engine, I think all the games have that RNG mechanic and you wont be able to abuse critical hits or some other manipulations.
I dont know if I will continue TASing Orcs & Elves. Its up to you: likes, comments and so on.")
![[TAS] Doom: Eternal III - Map 24 UV-Max in 8:43 by Dimon12321](https://i.ytimg.com/vi/UenjWVKxFvs/mqdefault.jpg "[TAS] Doom: Eternal III - Map 24 UV-Max in 8:43 by Dimon12321
This is a tool-assisted speedrun that devastates Map 24 of Eternal III quickly!
Sourceport: PrBoom+ 2.5.1.4cl2
About 80% of input was made in XDRE 2.20.
Music: Alien Vendetta - Map 8
Map 24: Rainbow Bridge
1. Blue key section
So, at the beginning, I killed all the monsters. Backpack helped me store more ammo which helped me at the end of the game. After beating all the demons, I was meant to beat 4 hell knights nearby, but it would be time-consuming, so I decided to leave them for later. Also, I invoked 2 cacodemons, waiting behind the bridge, to make them fly to appropriate places.
North-western room (sector 304) was pretty dangerous. Fortunately, I provoked 4 cacodemons to fight with other monsters, so I could clean the room faster.
It was a big luck for me to have those 4 hell knights walking around in the northern part of the bank (sector 156). I killed them all and save a lot of time!
Cleaning the North-western room wasn’t that hard. However, monsters could kill each other better =)
2. Opposite side to the Blue key section
The first part (rooms with sectors 229, 230 and 244) is self-explanatory. Just running around and killing everything. The most difficult moment was killing 3 imps with a single SSG shot.
The second part was hard. As soon as you enter the balcony area (sector 159), the closet opens and 5 cacodemons fly out and teleport to different places, trying to surround you. Fortunately, that section isn’t that fast because you must activate 2 switches inside the towers in order to advance with the map. By the time I was about to leave that section, the most problematic cacodemon had reached me and I killed him, so the route wasn’t spoiled.
3. Central castle (sector 1 and all around it)
It’s self-explanatory. At the beginning of it, it’s a multilevel route to kill all the monsters. After using the red lift (sector 6), I ran for the plasma gun secret which required 4 switches to be activated. It was a good time to use SSG instead of fists.
The next part was really hard. You must activate a switch to open an underground room with cacodemons, two of which are placed near the teleporting linedefs (444 and 445). The sound propagation is terrible. They wake up if make noise in the sector 48, so I kept silent for a while, just to kill those 2 cacodemons which could break my route. That part was remade twice because of my carelessness.
4. Square of the damned (sector 378 and everything around it) (part 1)
Firstly, I had to run through a big square hallway which featured some wallrunning. To open the inner yard, you must reach the opposite part of the hallway, head back to the opened door, use a lift and cross a special linedef (3002). Killing monster on the way was hard because Plasma Riffle is the most unpredictable weapon in terms of damage manipulation. Fortunately, I killed everything as planned.
The inner yard (sector 380) features a secret section with monsters and ammo, so I headed to it first. The switch on the opposite wall opens the door to the outer yard (sectors 396 and 404) which is filled with monsters and 2 cyberdemons among them.
5. Northern part and the Red key section (sectors 396 and 123 + 120, respectively)
The 1st cyberdemon was out, so my target was to make monsters fight him. Fortunately, some work was already made for me + invisibility helped me manipulate cyber’s blasts.
As soon as you leave the front area (sector 120), the first layer of the central square (sector 381) starts lifting down. Even though, I met 2 revenants in time, most monsters bypassed their teleporting linedefs and started going out of the inner yard towards me. Afterwards, I had to change the route slightly.
6. Square of the damned (part 2)
I planned to encounter the inner yard directly, but was meant to run through the northern part of the hallway to kill a bunch of bastards. Also it was the most appropriate place to kill one of 2 arch-viles. Ironically, it bypassed its teleporting linedef as well.
After shooting everything in the inner yard, I headed to the red door and activated the switch to be able to use the lift inside the central square (sector 491). Well, this sector isn’t the best possible to shoot monsters on balcony areas, so I didn’t spend much time fighting Doom’s aiming system.
After you enter the yellow key room, the last 2 closets open up, so I run through the whole square hallway for the last time to kill them all.
7. Southern part and the exit
This section was partially made in slow-motion + segmenting because the 2nd cyberdemon’s neighbors (things 245 and 246) flew inside the hallway and were about to enter the secret room (sector 470) which would break my route. So, some time was spent on their route manipulations. At last, I killed the remaining monsters. The last one had died 2 tics before I finished the map.")
![[TAS] Doom - Icarus: Alien Vanguard - Map 1 UV-Max in 1:45 by Dimon12321](https://i.ytimg.com/vi/Unc7utaeNAA/mqdefault.jpg "[TAS] Doom - Icarus: Alien Vanguard - Map 1 UV-Max in 1:45 by Dimon12321
Most of the run is self-explanatory. As usual, I prefer smoothness over speed and sharp turns.
Even though I spent about 10 hours on building it frame-by-frame, I still made 2 mistakes.
1. I forgot to kill 2 imps behind the demon wall in the room with a chair. I suspect demons would block my way out if I had stayed in the room for longer, but Ive lost about 4 secs anyway. Fortunately, they were not far away from the battlefield.
2. I could use more advantage of gradually opening gates and lifts that guard yellow and red keycards and leave more monsters alive to kill them later.")
![Doom: Judgment [MBF21] Walkthrough 100% - Part 2/7 (Maps 7-10 and 33)](https://i.ytimg.com/vi/V9fOlcr-NXk/mqdefault.jpg "Doom: Judgment [MBF21] Walkthrough 100% - Part 2/7 (Maps 7-10 and 33)
This video completes Episode 2 (Maps 7-10 and the secret Map 33) with 100% kills and secrets. Technically, Map 11 belongs to this episode too, but since the player loses all the weapons at the end of map 10, I decided to move it to a separate part.
Fail moments where I die or wander around were replayed.
Timecodes
0:00 - Map 7
6:44 - Map 8
12:10 - Map 8 (secret exit switch sequence)
14:10 - Map 33
19:44 - Map 9
28:18 - Map 10
Source port: DSDA-Doom 0.22.5.
WAD release thread: https://www.doomworld.com/forum/topic/125238-judgment-34-map-mbf21-megawad-final-version-now-on-idgames")
![[TAS] TMNT 2003 GC - Stage 4: Donatello New Game](https://i.ytimg.com/vi/VbfmL5ncO_o/mqdefault.jpg "[TAS] TMNT 2003 GC - Stage 4: Donatello New Game
This is a tool-assisted speedrun (TAS). Playlist with all stages: https://www.youtube.com/playlist?list=PL3V0eG1j-1vKfkxneY3XydESL0dxPb2JT
Stage 4 Area 1
I finally had my strength improved. Being able to take down a Foot ninja with 2 weak attacks unlocks more potential for time saves, but this means more pain in the shell. The potential now lies just near a framerule which can be saved, and the problem is, not every squad can be destroyed fast enough to make the next squad spawn 30 frames earlier.
Foot Tech Ninjas also became easier to eliminate, but there’s also a difficult time-saving tactic in sight: “(A-A-A)-B, dash, B” - perform a legs-circle combo to hit a Tech Ninja with spinning legs as soon as they are vulnerable, dash and do a strong attack. This tactic makes sense to do against solo techs or 2 techs spawned close to each other near the wall. The wall is needed to have 2 ninjas hit by a strong attack in restricted time. As a result, spawn – hitting – vanish sequence finishes near the closest framerule, saving 30 frames. For a duet, the conditions must be almost perfect to have it done in 1-5 frames before the framerule. That’s why it’s not seen so often.
As an alternative, some spawn points are accompanied with urns, which you can kick into Techs and make them fall down faster and win enough time to cut down 1 framerule. The same tactic concerns “2 + 1” squads too, where I push one Tech into the upcoming Tech to save time.
I used all nearby urns on Area 1 with the exception of Tech squad #2. Unfortunately, I cannot collect 2 Techs together (neither Tech 1 and 2, nor Tech 2 and 3) to eliminate them in 1 combo or by doing B-dash-A-dash-B. If I let 2 Techs finish their show-up animation and kill them, there’s still no timesave for the last Tech if I kick urna at him because he lands far away from me. “(A-A-A)-B, dash, B” should have been used instead.
A new enemy is introduced here: Foot Bee. These foot ninjas in yellow aircrafts have the longest show-up and vanishing animations in the game and therefore are top priorities because other enemies can be destroyed while a Foot Bee spins and blows up.
Stage 4 Area 2
Here, I use leg-spinning combo more often. I’m satisfied with the shuriken management. Not much to say.
Stage 4 Area 3
The area is concentrated around 5 mini-boss battles. Foot fights in the first 2 rooms were mostly easy with the exception of the squad of 3 ninjas near the northern-east wall, which I couldn’t eliminate that easy for some reason because my weak and strong swings were bypassing one of them. Strong attack was more efficient, but the positions of fallen ninjas were uncomfortable for me to finish them quickly, so I went on with a combo.
Mystic ninjas were really easy to kill. I’m surprised speedrunners didn’t use combo-dashing on them, in the same way they did with Evil Turtlebot.
Unfortunately, I faced another desync when playing back the whole stage, so I had to resync the input until I reached the point where I left off, but some playaround moments were lost.
Stage 4 Area 4
This area provides a difficulty to speedrunning because some spawn points of Foot Tech Ninjas are placed inside fountains and, even though they don’t look that high, you still have to jump out which slows you down, and you have to cross their borders to narrow the distance you need to cover with dashes.
At least, 3 squads of a Bee + Foot Tech Ninjas were difficult to optimize.
2 desyncs happened here.
Stage 4 Area 5
This small area with well-adjusted tactic was a real nightmare for me! Desyncs here were stable! Savestates were not determined regarding Foot Gunner Ninja’s protection, whether my attacks and shurikens are blocked by his shield at the moment. I could easily hit him through the shield, but it didn’t happen during the movie playback.
Invalidating savestates in TAStudio didn’t help that much. The issue could be seen only when playing the movie from the boot-up or Stage 4 select screen. It seems like it’s a transit problem which cannot be seem by simply replaying the last area.
After the whole playback, I got a proper save and finally finished it.
0:00 Stage Select
0:23 Stage 4 Area 1 (in 1;20)
1:57 Stage 4 Area 2 (in 1;45)
3:58 Stage 4 Area 3 (in 1;32)
5:44 Stage 4 Area 4 (in 1;04)
7:04 Stage 4 Area 5 (in 0;19)")
![[TAS] Doom: Rowdy Rudy 2 - Map 4 UV-Max in 0:46 by Dimon12321](https://i.ytimg.com/vi/Vea-DnjR_DM/mqdefault.jpg "[TAS] Doom: Rowdy Rudy 2 - Map 4 UV-Max in 0:46 by Dimon12321
That was an easy one. Done in 3 hours.
SSG really came in handy, as well as another berserk. This map seems to have the easiest secrets in the entire WAD.
Got a dilemma which path to take after grabbing the berserk. Decided to kill the vanguard near the exit door and take a rocket launcher. By the time I did that, all the monsters had already teleported to the lake area. I dont know if it could be done the other way, but I dont care about it anymore.
I realized I didnt have much ammo, expect for the bullets, with me, so its time to grab some shells on Map 5.")
