WallSmasher

HOW TO PLAY

Shoot the colored walls with a laser to SMASH them!!
left shooting key : 'A' 'S' 'D' 'F'
right shooting key : 'J' 'K' 'L' ';'
green wall  hp 1  
yellow  wall hp 2  
!  swap left and right  
+  recover full HP
Why are there 4 keys? 
=> You only need to use one key
BUT 
If the yellow wall heals, the total health is 4.
You can press 4 keys at once