Astro Man (RMF)
Astro - Vertical Screen Zip
Notes from Discord
https://youtu.be/K_fTprCnqZA?si=plhPHfilcY-GKPIA
According to Werking, there is a zip that sometimes mysteriously "just kills you". This can be prevented by tapping left after the menu if you don't hear the Spike Guard sound.
Comparison Video
The Zip saves about 10 seconds compared to not taking the zip, as shown in this video from Werking.
Astro Man RMF - Button Puzzle Skips
You can skip the button puzzles with ice wall and good timing. The second puzzle is easier to skip than the first.
The basic idea for both is to position Mega Man's hand properly. The background is conveniently many small squares, so position Mega Man about 3 squares away. Use ice wall, slide into it, and clip through the door.