Shippo (InuYasha

From Animepedia

shippo is fox demon "cub" who gets into a lot of arguments with Inu Yasha witch usely end Kagome yelling "sit" with the exepetshon one time when he forgot to tell the group that krara went with meoga the flea, he can transform into many things but his favored one appears to be that little bubble monster thing also he can crate an illusion a large top that some how can effect inatemint objects, in one episode he gained the ability to tern himself and other things invisible but the effects do not last long,