Hi! I'm not really familiar with Cocos Creator, but if it supports spritesheets I think it should work. I'd suggest to download the free version to test it.
Hey, I'm glad you like it. Right now I'm working on a dungeon pack. After that I want to come back to the characters, adding some more animations, and while I'm at it I might add some more characters. Do you have something in mind? Like, what characters and enemies would you like to see?