SM64DS: Tall Tall Mountains Fly Guy HayashiSTL 2024-07-11 | There's something special about the Fly Guy in Tall Tall Mountain that doesn't happen with other Fly Guys. Let's find out!
SM256: Building the Logo HayashiSTL 2024-03-28 | How the game builds the "256" part of the logo, along with some information about DS 2D rendering. There might be a part 2, I'm not sure yet.
Tox Box(-like) Movement 3: 2D Shapes HayashiSTL 2023-11-09 | Part 3 of the rolling shape series. This one looks at which 2D shapes can roll on a grid.
SM64DS: Overlays HayashiSTL 2023-09-17 | The game uses overlays to account for the fact that not all actors' code can fit in memory at the same time.
SM64DS: Rooms HayashiSTL 2023-09-01 | Rooms are something you may have taken for granted in SM64DS, but here's how they work and how things can go wrongScuttlebug jamboree: youtube.com/watch?v=RvzAh1-haN0
Tox Box(-like) Movement 2: 24 Orientations HayashiSTL 2023-08-21 | The previous video (youtube.com/watch?v=QwdyVd2iruw&t=371s) covered movement of actual Tox Boxes. The Tox Box only cares about which way the hole is facing. However, a cube has more orientations than 6. What happens if distinguishing all 24 orientations matters?
SM64DS: Null Egg Glitch HayashiSTL 2023-07-26 | Yoshi does mysterious things again. This time by carrying an object that doesn't exist.
SM64DS: Tox Box Movement HayashiSTL 2023-07-19 | The Tox Box is a simple enemy, but when its movement is analyzed, things can get complicated.
SM64DS: Spitting Unspittable Objects HayashiSTL 2023-07-03 | Yoshi can spit some objects, but not others. But with a glitch, even the unspittable ones can be spit. What happens if Yoshi spits an unspittable object?
Super Mario 256 Reveal #7: XYZ Plot of Math HayashiSTL 2023-06-12 | Yet another course that will appear in Super Mario 256. Also, half the courses have been developed.
Super Mario 256 Reveal #6: Chain-Link Poison Swamp HayashiSTL 2022-10-26 | Another course that will appear in Super Mario 256
Super Mario 64 DS: Tunneling HayashiSTL 2022-07-04 | Tunneling is a glitch discovered in late March 2021 by Really_Tall and used to make a 0-star run of the game. It takes advantage of gaps in the collision triangles and the raycast checks not including the ends. This is the most precise glitch discovered so far, but also one of the most broken ones.0-star TAS: youtube.com/watch?v=KwLCxGTTk5MMore applications: youtube.com/watch?v=_5vIq-b6KZUFloor tunneling setup program: github.com/josh65536/sm64ds-tunneling/releases/tag/v1.0.0*Technical details*Each collision triangle several parameters, each with its precision:- Origin (Q26.6): first point of triangle- Length (Q16.16): distance from origin to opposite side- Normal (Q6.10): triangle normal- Edge normals (Q6.10): normals of the triangle's edges, parallel to the triangle and perpendicular to the edges. Stored in (left edge, right edge, opposite edge) order respective to the origin.Given two triangles with origins p₁ and p₂, lengths d₁ and d₂, normals n₁ and n₂, left edge normals el₁ and el₂, right edge normals er₁ and er₂, and opposite edge normals eo₁ and eo₂, then for p to be a tunneling point:Both of these must be true:(p - p₁) • n₁ = 0(p - p₂) • n₂ = 0One of these three must be true:(p - p₁) • el₁ ＞ 0(p - p₁) • er₁ ＞ 0(p - p₁) • eo₁ ＞ d₁ One of these three must be true:(p - p₂) • el₂ ＞ 0(p - p₂) • er₂ ＞ 0(p - p₂) • eo₂ ＞ d₂
Super Mario 256 Reveal #5: Beep Shift Skies HayashiSTL 2021-06-12 | The music desynced with the blocks at the end. That's a glitch with VirtualBox DeSmuME's video recording, not with the game. The music perfectly syncs with the blocks in game.
[April Fools] Super Mario 256 Port to Super Mario 64 HayashiSTL 2021-04-02 | Super Mario 256 is getting ported to Super Mario 64! Here's a preview of Quicksand River Desert. There are some glitches to fix, such as collision detection being generally annoying, and Tox Boxes need to have their paths unhardcoded. Also you can't have a Pokey and a Thwomp in the same level, so compromises need to be made.April Fools!
Flip-Jump Swap-Kick Woods 100% in 1:24.71 HayashiSTL 2021-03-10 | Sorry for the quality; I got bored.Timed from first frame of fade-in to frame of star collectionThis also teases a couple of changes.
SM64DS Actor 161: Thwomp HayashiSTL 2021-03-05 | The Thwomp is an angry stone that periodically stomps on the ground, squishing players beneath.*Actor Statistics*- The Thwomp has the flag "Aimable by Yoshi Egg". Forgot about that.*Behavior*- The Thwomp determines where the ground is with a raycast 50 fxu above its placed position. If the raycast fails, the Thwomp will think the ground is 50 fxu above its placed position, resulting in a Thwomp that stomps on thin air. This never happens in game.- If the ground below a Thwomp moves, the Thwomp will stomp on thin air. This never happens in game.- The random number of frames to wait in the air is (⌊x/65536⌋ mod 30) + 10, where x is the number the RNG returns. This is calculated on the last frame the Thwomp moves up.- The random number of frames to wait on the ground is (⌊x/65536⌋ mod 10) + 30, where x is the number the RNG returns. This is calculated on the frame the Thwomp stomps the ground.- The code splits the wait-on-the-ground state into 2 states and I have no idea why: 1. Wait 10 frames 2. Wait 20 + d frames, where d is a random number and 0 ≤ d < 10*How to Defeat*- The Thwomp will respawn if the player enters a subarea of the course and leaves it. This never happens in game, as Whomp's Fortress and Tick Tock Clock don't have subareas.
SM64DS: Water Collision HayashiSTL 2021-01-02 | Water in this game is a broken mess beyond the surface. The way water was coded seems to heavily use the assumption that water is a flat surrounded plane, which hacks for Wet-Dry World's and Tall Tall Mountain's special shenanigans.
Super Mario 64 DS: RTA BBC Feasibility HayashiSTL 2020-05-21 | It's been a while since the last B press was saved in SM64DS v1.0. But is it possible to to a 0 B press run without TAS?
Super Mario 256 Reveal #4: Musical World HayashiSTL 2020-03-08 | It's been a long time, so here's another course reveal.I switched to Linux, and unfortunately, upscaling for DeSmuME doesn't exist in the Linux version, so excuse the quality. In other news, this video was made using Blender instead of PowerPoint.
Super Mario 64 DS: Mesh Colliders Part 3 of ???: Pause Clip HayashiSTL 2019-12-24 | Another way to clip through blocks.
SM64DS: 90 Degree Wall Jump HayashiSTL 2019-11-12 | You've heard of the 180-degree wall jump and the 0-degree wall jump, but what about the 90-degree wall jump?Direction reset explanation: youtu.be/LYE3pbvhlcE?t=192
Super Mario 256: Puzzles and Machinery: A Line of Logic HayashiSTL 2019-08-15 | Apparently this puzzle has tripped up a lot of people. So here's a way to think about it.
SM256 Demo OST: Tox Box Pyramid HayashiSTL 2019-05-27 | The theme for the pyramid in Quicksand River Desert
SM256 Demo OST: Desert Full of Quicksand HayashiSTL 2019-05-27 | The main theme for Quicksand River Desert
SM256 Demo OST: A Mashup of Old Themes HayashiSTL 2019-05-23 | The main theme of Callback Mashup Land
Super Mario 256: Demo HayashiSTL 2018-12-16 | A demo has been released! (v0.1.3)http://kuribo64.net/get.php?id=rPr2p34DmeG9wdV5This version has a better crash screen, which allows showing of the stack after pressing the Select button. Press left or right to navigate the stack.This contains patches for the EUR, US v1.0, and US v1.1 SM64DS ROMs, and the xDelta version to patch them with.This game will not work in DeSmuME v0.9.11, because it uses the "smlalbb" instruction in the code to transform models, which that version of DeSmuME does not handle properly. Instead, use the latest nightly build and hope that said build is stable.
SM64DS: Slope Speed HayashiSTL 2018-07-25 | Read the description, please.This video talks about how slope speed works in SM64DS and exposes a bug.Actual Horz. Speed = Horz. Speed in Memory (Action Replay):020bf3e8 e1a00000(Don't activate the code until you enter a level, because it could interfere with other code in the title screen otherwise)Fixed Slope Speed:drive.google.com/file/d/1hZbK2zJm5C76QE9rek025bnHp9rcBSIX/view?usp=sharingThis contains the xdelta patch for fixing slope speed, as well as the xdelta program to use to apply the patch.It also contains source code for all those SM64DS ASM hackers out there (no newbies, please).NOTE: The source code requires dy's version of NSMBe, found in this post: http://kuribo64.net/board/thread.php?pid=94188#94188
Big Boo Battle: Red Coins in the Maze (0.5 B Presses) HayashiSTL 2018-04-28 | Big Boo BattleRed Coins in the Maze0.5 B Presses"Infinite boo bouncing!"Credit to Adeal for this also annoying strategy of saving a B press.And with that, not a single full B press is seen.
Wet-Dry World: Go to Town for the Red Coins (0 B Presses) HayashiSTL 2018-04-26 | Wet-Dry WorldGo to Town for the Red Coins0 B Presses“8-Red Coin Mega RIG! Stars hate it.”Trying to do this with just 1 RIG was a challenging puzzle that also required fast timing.
Peachs Castle: Entering the Aquarium (0 B Presses) HayashiSTL 2018-04-26 | Peach's CastleEntering the Aquarium0 B Presses“Fun fact: My technical knowledge 〉my skill”This strategy is not worth replicating. It took 2 weeks for Sharkey91 to do it, and he's an experienced TASer.
Chief Chilly Challenge: Super-Chilly Red Coins (0 B Presses) HayashiSTL 2018-04-26 | Chief Chilly ChallengeSuper-Chilly Red Coins0 B Presses“Flying through a stage!”Credit to Adeal for this annoyingly precise strategy.
The Secret Under the Moat: Switch Star Vertical Climb (Annotated, 0 B Presses) HayashiSTL 2018-02-10 | This goes in depth on what it takes to get the switch star in The Secret Under the Moat in 0 B Presses. That includes entering the course in the first place.
