Thanks for playing! I'll definitely be adding more enemies as time goes on.
As for the charge, I have 2 thoughts on it. A cap on the charge makes sense to limit it. However I also like to give the player the freedom to push certain attacks to an extreme level. If possible, I'd like to add enemies or challenges that give the player a reason to not just hold it as long as possible. But if they build in a way that can overcome those problems, then they can go as wild as possible with the charge and play however they like.
I appreciate the feedback!