Jellopuff | [MKW TAS] GCN DK Mountain Backwards 1x Respawn @Jellopuff_TAS | Uploaded 2 years ago | Updated 7 hours ago
I complete a lap of the track GCN DK Mountain in the wrong direction using a single respawn. This is TAS. This improvement, alongside Kierio's backwards Koopa Cape demonstration, brings the total number of impossible backwards tracks in MKW from 2 to 0. Every track in the game can be driven a full lap backwards.
This run was created on Dolphin Lua Core with savestates, slowdown, frame advance, TAS code, and Info Display (created by SwareJonge). The video overlays were created by Stebler (bottom right) and Melg (left).
This video is an improvement on the previous strat which doesn't complete the track backwards. Since then, we figured out that we could complete the track backwards. Pretty simple really.
A couple of months ago, xnik demonstrated that it was possible to go over the invisible wall on DK Mountain (youtube.com/watch?v=VLOAtrxIJh8). The way they did this was by getting stuck in the final ramp on the downhill section of the track, somehow causing the vehicle to pick up momentum (but not speed) in the -Y direction. He then performs a hop and a bonk against the ramp collision to perform a External Velocity transfer from the Y vector to the X and Z vectors. We've coined this specific example of rigid body physics "velocity stacking" since it sounds cooler and stuff. So, in making this run, I went about the same method with the intent of driving the track backwards.
After getting lodged into the ground, I build up about 5900 -Y external velocity, and with reversing, I was able to get this speed up to about 6400. Then, as I turn to prepare for the speed transfer, my speed drops by around 1000 from turning the vehicle, ultimately leading to the remaining ~5300 -Y external velocity being transferred to the other vectors. This means that, while my actual speed can't exceed 120kmh in any direction, the game will keep pushing me along at 120 XYZ speed as the forces dictating my movement are so much higher than my actual speed. I take advantage of this by driving all the way up the volcano and using the sloped ground to repeatedly rotate the vehicle in midair. This bizarre movement leaves me with enough positive Y external velocity to completely surpass the invisible wall reaching ~64000 units into the air. Simultaneously, this also allows me to hit checkpoint 23, setting my respawn position to region 1, placing me right in front of the cannon.
To summarize, here are the statistics GCN DK Mountain has to offer:
did it :)
Music: Gran Turismo 4 License Music (Remix) - j0hnnys1nz (youtube.com/watch?v=0blvziYuzU0)
____________________________________
MKW TASing Discord Server: discord.gg/EPD9yCu
MKW TAS BKT Website: mkwtas.com
I complete a lap of the track GCN DK Mountain in the wrong direction using a single respawn. This is TAS. This improvement, alongside Kierio's backwards Koopa Cape demonstration, brings the total number of impossible backwards tracks in MKW from 2 to 0. Every track in the game can be driven a full lap backwards.
This run was created on Dolphin Lua Core with savestates, slowdown, frame advance, TAS code, and Info Display (created by SwareJonge). The video overlays were created by Stebler (bottom right) and Melg (left).
This video is an improvement on the previous strat which doesn't complete the track backwards. Since then, we figured out that we could complete the track backwards. Pretty simple really.
A couple of months ago, xnik demonstrated that it was possible to go over the invisible wall on DK Mountain (youtube.com/watch?v=VLOAtrxIJh8). The way they did this was by getting stuck in the final ramp on the downhill section of the track, somehow causing the vehicle to pick up momentum (but not speed) in the -Y direction. He then performs a hop and a bonk against the ramp collision to perform a External Velocity transfer from the Y vector to the X and Z vectors. We've coined this specific example of rigid body physics "velocity stacking" since it sounds cooler and stuff. So, in making this run, I went about the same method with the intent of driving the track backwards.
After getting lodged into the ground, I build up about 5900 -Y external velocity, and with reversing, I was able to get this speed up to about 6400. Then, as I turn to prepare for the speed transfer, my speed drops by around 1000 from turning the vehicle, ultimately leading to the remaining ~5300 -Y external velocity being transferred to the other vectors. This means that, while my actual speed can't exceed 120kmh in any direction, the game will keep pushing me along at 120 XYZ speed as the forces dictating my movement are so much higher than my actual speed. I take advantage of this by driving all the way up the volcano and using the sloped ground to repeatedly rotate the vehicle in midair. This bizarre movement leaves me with enough positive Y external velocity to completely surpass the invisible wall reaching ~64000 units into the air. Simultaneously, this also allows me to hit checkpoint 23, setting my respawn position to region 1, placing me right in front of the cannon.
To summarize, here are the statistics GCN DK Mountain has to offer:
did it :)
Music: Gran Turismo 4 License Music (Remix) - j0hnnys1nz (youtube.com/watch?v=0blvziYuzU0)
____________________________________
MKW TASing Discord Server: discord.gg/EPD9yCu
MKW TAS BKT Website: mkwtas.com
![[MKW TAS] GCN DK Mountain Backwards 1x Respawn](https://i.ytimg.com/vi/LpL2Sbehj1M/hqdefault.jpg "[MKW TAS] GCN DK Mountain Backwards 1x Respawn
I complete a lap of the track GCN DK Mountain in the wrong direction using a single respawn. This is TAS. This improvement, alongside Kierios backwards Koopa Cape demonstration, brings the total number of impossible backwards tracks in MKW from 2 to 0. Every track in the game can be driven a full lap backwards.
This run was created on Dolphin Lua Core with savestates, slowdown, frame advance, TAS code, and Info Display (created by SwareJonge). The video overlays were created by Stebler (bottom right) and Melg (left).
This video is an improvement on the previous strat which doesnt complete the track backwards. Since then, we figured out that we could complete the track backwards. Pretty simple really.
A couple of months ago, xnik demonstrated that it was possible to go over the invisible wall on DK Mountain (https://www.youtube.com/watch?v=VLOAtrxIJh8). The way they did this was by getting stuck in the final ramp on the downhill section of the track, somehow causing the vehicle to pick up momentum (but not speed) in the -Y direction. He then performs a hop and a bonk against the ramp collision to perform a External Velocity transfer from the Y vector to the X and Z vectors. Weve coined this specific example of rigid body physics velocity stacking since it sounds cooler and stuff. So, in making this run, I went about the same method with the intent of driving the track backwards.
After getting lodged into the ground, I build up about 5900 -Y external velocity, and with reversing, I was able to get this speed up to about 6400. Then, as I turn to prepare for the speed transfer, my speed drops by around 1000 from turning the vehicle, ultimately leading to the remaining ~5300 -Y external velocity being transferred to the other vectors. This means that, while my actual speed cant exceed 120kmh in any direction, the game will keep pushing me along at 120 XYZ speed as the forces dictating my movement are so much higher than my actual speed. I take advantage of this by driving all the way up the volcano and using the sloped ground to repeatedly rotate the vehicle in midair. This bizarre movement leaves me with enough positive Y external velocity to completely surpass the invisible wall reaching ~64000 units into the air. Simultaneously, this also allows me to hit checkpoint 23, setting my respawn position to region 1, placing me right in front of the cannon.
To summarize, here are the statistics GCN DK Mountain has to offer:
did it :)
Music: Gran Turismo 4 License Music (Remix) - j0hnnys1nz (https://www.youtube.com/watch?v=0blvziYuzU0)
MKW TASing Discord Server: https://discord.gg/EPD9yCu
MKW TAS BKT Website: https://mkwtas.com/")
![[MKW TAS] (My First 3 Lap TAS) Grumble Volcano (Rock-Hop) (Spear) 1:34.357](https://i.ytimg.com/vi/M_-n0jZ-xmA/hqdefault.jpg "[MKW TAS] (My First 3 Lap TAS) Grumble Volcano (Rock-Hop) (Spear) 1:34.357
Yes, I am well aware that this is improvable by a large amount, but for my first 3 lap TAS, Im happy with the result. It was fun to make :)
And by the way, do not under any circumstances use Spear on this track online. You will lose.")
![[MKW TAS] Grumble Volcano Flap (Ultra) - 1.629](https://i.ytimg.com/vi/NKDxrxdmiaY/hqdefault.jpg "[MKW TAS] Grumble Volcano Flap (Ultra) - 1.629
This is a tool-assisted speedrun. This time will not count on any real-time rankings. Done on Dolphin 5.0 with savestates, slowdown, frame advance, TAS code, and RAM watch (created by Swarejonge).
TAS Flap BKT Cut: -0.885
Previous BKT: https://www.youtube.com/watch?v=ccmTRMfeBPY (by Marth)
So, I was at school today, and this idea just sorta popped into my head randomly. I was pretty confident that something like this could be done, but I didnt expect this large of a timesave. Regardless, first ever sub 2 second flap hype! :D
I think the strats in the lap are self-explanatory for the most part. However, theres a few things I need to point out about optimizing this thing. First, if there was anyway to get on top of the ? Block without using a shroom, there would absolutely be timesave here, but I doubt that its possible to do anyway. Second, I dont believe you can get a backwards hop thats any faster than this one. If there is, then thats also potential timesave. Third, once I exit the boundaries of the checkpoint after getting the lap count, my lap completion remains at a constant 2.000012. For this reason, theres basically no way to improve the lap count since lowering the lap completion any further would come about by changing my horizontal position by less than a pixel, which obviously isnt very practical or useful at that point. Finally, Im only in the final KCP of the track for 3 frames. I cant bring that down since I actually dont land directly into the KCP. Instead, I land to the side of it and simply get pushed into it due to my momentum to the right. I cant land in the KCP region directly because of the initial hop position and the sheer precision of the lap count manipulation. As a result, I cant enter the KCP for only 1 frame, but hey, 3 frames is still pretty damn fast. Thats all I wanted to point out. Hopefully that will clear up some of the questions regarding this run.")
![[MKW TAS] Grumble Volcano (Rock Hop) (Spear) - 1:33.152](https://i.ytimg.com/vi/NbNb5ueE4JM/hqdefault.jpg "[MKW TAS] Grumble Volcano (Rock Hop) (Spear) - 1:33.152
Note: Not optimized. I made this TAS more for fun than anything else.
Also, I suggest you read the comment I pinned.")
![[MKW TAS] Hitting One of the Unused Item Boxes under DK Summit](https://i.ytimg.com/vi/O3ERA6-V430/hqdefault.jpg "[MKW TAS] Hitting One of the Unused Item Boxes under DK Summit
This is a tool-assisted demonstration. Done on Dolphin 5.0 Lua Core with savestates, slowdown, frame advance, and Info Display (created by Swarejonge).
This isnt a typical upload from me. Whenever I post something, its usually to document a new strategy, publish a completed best-known time, or both at once. This, however, is something entirely different. My love of this game roots not only from TASing and optimization but also from the miscellaneous parts of the game which arent often thought about. This video serves to showcase one of those obscure details in a never-before seen way.
DK Summit is one of very few tracks in this game to have item boxes that are inaccessible to the player through direct means. At the second bend of the S-turn, theres a set of three item boxes located far below the track. These items can be seen from a distance by turning around after the cannon and tricking over the invisible wall (this was how the items were discovered in 2012). The reason for these items existence and placement is unknown, but one things for sure: theyre there. For 15 years, these items have gone untouched in regular play, and theyve long been written off as completely inaccessible. However, given the glitch hunting scenes vast knowledge of the game in 2023, I started to get curious if these item boxes really were as inaccessible as weve come to believe.
Lets get a bit more specific about the boxes to illustrate the problem. The items are located roughly 32000 units below the track directly above them (for reference, the Spear is roughly 275 units long), and theyre positioned at Y = -22000. Already we have a pretty major issue since the game has a hardcoded failsafe to count the player out of bounds if they even fall below Y = 0. The teleport caused by a respawn takes 130 frames to occur from the moment the player crosses Y = 0, and if we consider that 120 units per frame is the fastest the game will allow us to move, we have a maximum range of 15600 units below Y = 0, which is still over 6000 units away from the item boxes.
While this alone may seem to immediately confirm the items inaccessibility, we have a trick up our sleeve: the Mega Mushroom Fast Fall. In the past year or so, glitch hunters have discovered that, while in a mega mushroom, the XYZ speed cap is increased substantially. This allows us to move faster in situations where our external velocity surpasses 120, such as with a supergrind. Since gravity in MKW is caused by a decrease in EV in the Y direction, using a mega mushroom while airborne has the same effect, leading to our terminal velocity increasing. This boost to our fall speed allows us to cover the remaining 6000 units needed to reach the item boxes vertically, so that just leaves reaching their lateral position.
The main problem here is that the items are in a REALLY awkward spot. All three are positioned underneath either drivable road or a higher killplane, so we have to get out-of-bounds and somehow get underneath the track at the same time. Thankfully, theres a unique solution we can use. For whatever reason, the Cheep Charger (and apparently other vehicles) can clip through the halfpipes on DKS by performing a trick and landing upside-down. This allows us to clip out-of-bounds while simultaneously facing towards the track rather than away. While this has no uses in time trials, it certainly works for this specific purpose.
To summarize, by using Cheep Charger, we can perform a trick off the zipper to clip through the floor with an angle directed towards the item boxes. We then use the mega mushroom and move in such a way that by the time we reach the universal killplane, weve already reached one of the item boxes laterally. The increased speedcap of the mega mushroom allows us to then fall fast enough to reach and break one of the item boxes just before the game teleports us back onto the track.
Major props to Gaberboo for helping me with the No Respawn Blackout visual, and thanks to Police for bringing the Cheep Charger Zipper Bypass to my attention!
Music: シーモアバトル (Fight With Seymour) - Nobuo Uematsu and Tsutomu Narita (https://www.youtube.com/watch?v=o8UELk E8Q)
Composed for the Final Fantasy X HD Remaster soundtrack.
MKW TASing Discord Server: https://discord.gg/EPD9yCu
MKW TAS BKT Website: https://mkwtas.com/")
![[MKW] Luigi Circuit No Joystick Allowed](https://i.ytimg.com/vi/O_21BcMRIiI/hqdefault.jpg "[MKW] Luigi Circuit No Joystick Allowed
I clear the track Luigi Circuit in Mario Kart Wii without using the Joystick. This is TAS.
Community Playlist for the MKW No Joystick Allowed Challenge: https://www.youtube.com/watch?v=O_21BcMRIiI
Kappa")
