Another suggestion, a little tweak to rebalance the enemies in game.
1. The sperm whales should be susceptible to status effects such as knock back, chill, or possibly poison. The health is fine and the speed is kinda mediocre since they're kinda fast while immune to ground damage, since most of the babies are targeting an enemy and had to sacrifice for some babies for it leave.
2. The red boom fly should have its speed tone down a bit or the hp, it'll just fly over your defense without taking damage.