Cubical Harmony

Game made to Kenney Jam. Theme: connection
Attention: this is my first web game, and also my first game to gamejam.
It's very raw and unfinished.
There are 2 levels in the game, but the transition between them doesn't seem to work 
Also, you can't die in the game.
The game has many bugs.
(I posted this game only because I spent a lot of time on it.
Control:
shift - jump
left button - left
right button - right
start game - left mouse button or any key