Huh! I haven't actually seen anyone innovate Snake before. Really cool idea! I like the fact that you have to both control the snake with keyboard and pop the baloons with mouse at the same time, that feels really coool. The only thing is the game could have greatly benefited from teaching the player that you need to pop the baloons, as it is not really clear, at least it wasn't to me, that you are losing the game and not progressing to the next stage ^^
Really cool design!