The inside of a drawer

This game has no language except for explaination of key.

Move block on table(3D) and create shadow on wall.
Then, you can reach white circle(2D).

You are a black circle. Your goal is reach white circle surrounded shadow.

KEYS-
ESC, Tab, W,A,S,D Space Bar, R, Mouse wheel, Drag
Tab: change character
W,A,S,D: move blocks
W,D: move black circle
Space Bar: select blocks , jump
R: restart
Mouse wheel: move view point
Mouse Drag: move view point