Go Headdy Go shenanigans - Dynamite Headdy

Go Headdy Go (5-1) is a simple stage, serving only as a bridge stage with a cutscene. But things can go wrong...
Randomly, you can get the cutscene to play the right inputs, but in the wrong spot, causing it to eventually desync. I can't quite figure out what causes this, but it seems to happen because you're too far right on the bottom step when the climbing scene starts. I can only assume it has to do with subpixel coordinates, so your best bet is to just retry till you get it. Holding right during the cutscene helps.
There's also a Headcase with a Liberty Head in it. If you collect this as you fall into the pit, you can get some interesting behaviors... I'll let the video do the talking.
Extra notes:
- You can't drop down the step with Down+C in that frame where input is allowed, since the game will only do the drop if you hold Down for at least one full frame and then press C with down held. Since you only get one frame of input here, dropping is impossible.
- I tried my best, but couldn't get the Liberty Head and land on the bottom step at the same time. It seems impossible by a good bit.
- Everything is the same in the Japanese version, except there's a dialog directly before the frame where input is allowed.
- If you idle in the continue screen after you get the head with text, Headdy's body will start a random idle animation, and when the head would change (to happy Headdy or Headdy with his eyes crossed), the text head will be gone and replaced with the normal from there on out.
- During the Liberty Head entrance transition, when you see Heady move right for a split-second, that wasn't my doing.