I love the concept, but there are a few problems that need to be addressed:
1. I'm not even color blind and yet I still sometimes have trouble telling the difference between different beams.
2. The weird horizontal lines strobing across the screen started to give me a headache after a few minutes.
4/5 For uniqueness despite the fact I still couldn't finish the game because of the reasons above.
After a few minutes of use it slowly starts to get laggier and laggier until after about 20 minutes its running at about 5 fps and the game basically becomes unplayable.
Because of this 2/5, else would be 4/5.
As a game suggestion, maybe the button should give more stuff? Like occasionally give mystery points or attack power maybe. (building strength from all that button mashing xD? --- say lvl/100 attack power? or something?)