The sound effects are a really nice touch, especially since it keeps track of how high you are too. The sprites for the spikes/stars are a little dark, and the balloons don't really have much design to them, making them fit the 8/16 bit art style would help them fit in more. I personally like the control you have over the movement, because I'm really bad at the original balloon fight because of how much momentum carries when you stop moving.
The game tracking your combo and score is a really nice touch, and the different sound effects for losing and losing with a high score is impressive. Some of the collisions feel a little weird, since I think I missed the obstacle but in reality my run ends.
It's really really fun!!