(Edit: Music on/off Feature)
Use the arrow keys to move, left-click and hold to shoot.
Extremely easy game, 10 laser types to play with.
Unsolvable Error: 2 enemys seem to go 2x faster than their actual speed... I do not know why this is happening, I have traced all the variables, they are all in order. The only thing I can think of is the setInterval function not deleting itself like I tell it to, making it 'operate' 2x faster. I've tried everything...
Good Luck and Have Fun!