Amazing!
Good game, the bombs were a good idea, that make you need timing too, clever ^^,
It needs a good music that isn't annoying or disturb your thoughts.
Some tips:
DJRunaway - Soft Song (soft)
ParagonX9 - Chaoz Survivor ( a stressful song, but fits in the game)
found in audio portal.
I made it to level 14 or something, can't remember.