I think you should have a archer boss, and he can shoot the characters off of your towers, but not your ground units, like maybe a tank. like, literally, a tank.
You should make a base amount for each fish, or whale, or noctopus. i once had 9 dollars for a whale, which made me annoyed, so you should make it so whales were always priced at 90 or higher.
If you go high enough in the air, when you come down you will not lose to much height or speed if you hit the floor. I for go high up into the clouds, you become some kind of freaking cotton candy bomb and smash in the gummies.
IT HAPPENED AGAIN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!