Platform cube

(1). You have to fix the collision check between the player and the platforms, sometimes the cube hovering over the platform, and sometimes it fell through the solid ground. (2). The collision mask for the cube is too narrow, make it wider, almost as wide as the cube, I think it is better that way. (3). I agree with Lemonsqueezy, the glitchy level is unplayable, the cube fell on the beginning of the level, no way to make it back to the game because I think the cube fell into an unlimited universe :D (4). At least add a jumping sound effect, I hate the silence. (5). add pick up objects such as coins or stars or whatever you like. (6). more colors please, unless you want to make a gameboy style game. (7). That's all I can think of it right now. :)

Glitchy level is unplayable. The cube falls through and disappears at the beginning. If you every fall again it just keeps falling forever forcing a restart. Seems like it has promise though.

Needs;; color, sound
a reason why not to die (or perhaps instead a reason to stay alive...)
a point system; upgrades or lives or time...

I liked;; the weird jumping thing... before reading more into comments, I thought it meant I had to land the cube fully on the blocks x3
The simplicity...

i like it :}