Cute, but incredibly easy.
A cute colourful game that sadly only manages to keep interest for about 10 minutes. Not really hard, and has the same problem that every "Control multiple characters" based game has; needlessly boring areas where I have to walk the same lengths of levels twice.
What makes or breaks these kinds of games are two factors:
1)Am I constantly using the unique powers of each character enough for the gimmick to work?
2)Are the levels tailored well enough to make this more than me just having to play sidescroller levels multiple times with fractions of characters?
The second area is the biggest problem. The levels are not puzzle oriented, just really ordinary sidescroller levels. When the only obstacle to any path is not being able to jump high or far enough, the game feels slow and boring.