What? No Bounce? I am aghast!
I have some opinions:
Currently, you have to save. I dislike this, and I will say why:
As of now, when you die, you lose your save...unless you exit the game and continue when you come back. I'd rather you not have to exit, and that, when you die, you go back to the shop...where you have to buy your health back. I liked the continuous saving of the original. Also, in the first version, you didn't advance a wave via "resurrecting" yourself, which is what happens now.
To sum up, instead of having to start over when you die, I'd prefer that you simply didn't advance, keeping the resources you gained to try and outfit yourself better.
Also, there are some glitchy enemysprites once you reach wave 18. I'll do my best to get a screen shot of them for you.