awhile back i ran this game for about a day or so and found out that you could clip into top-left-corners if you jump directly into them. i'm not sure if this is known because i haven't seen any videos with it, but here's a video demonstrating it along with an input viewer:

i really doubt this is useful for speedrunning, but i'd like to let it be known that it exists and could potentially be useful

(also it should be noted that there seems to be two types of clips, one with slow ascension and one with fast. in the video is slow ascension, but it seems to be random which one you get. also it's not exactly easy to clip and takes time)

EDIT: forgot to mention, but this was done on the downloadable version played on adobe flash player 22