I made a simple platforming game in Snap! inspired by a game I've been making on a different platform.
It's basically just a simple movement demo, but I think it's pretty cool.
i like that holding jump makes you jump higher.
i do seem to clip through the walls when jumping sometimes.
Do you mean clipping through corners?
yes.
I think that's because most platformers let you clip corners for some purposes like reaching far platforms or speedrunning or whatever.
if that is the case then perhaps there is a way to make it look smoother than just teleporting to the top of the wall. to me it seems more like a bug than a feature in its current state 
Clue is in the name of the project: "Simple Platformer"
It is intentional, and you can see why it happens if you show hitboxes. :)
I'll see about making it smoother