Controls:
Move and jump with W, A, D
Move screen with arrow keys
Zoom in/out with +/-
Hold L to lock the camera on the player
Press E or touch one of the red rubies to change your size (change size with W and A keys)
(When the game is finished, this will only be possible by touching a ruby)
You need to click on the program to use the controls.

The red switch activates the red portal, the green activates the green one, etc.
You can go to the next level by entering the red portal (right now there are only three levels)