Two things: First in the cave level you can just walk on the bottom and get to the finish. Second the lasers should reset when you respawn, I had to restart because in the level with two lasers from above I got stuck with the lasers continually killing me whenever I spawned. Other than that fun game! oh yeah and momentum too but it looks like some people have already commented that.
 "Hook Frog"){kind=icon}
 "Bloons Super Monkey 2"){kind=icon}
 "Enough Plumbers"){kind=icon}