Its funny how this game has been around for three years and has switched owners but the main complaints from the beginning have neither been adressed or fixed.
The "bosses" (characters 4x regular) are kinda a hassle to use if they're not flying. They can get stuck easy in some levels (Ones that require you to jump a lot in wedged spaces)
I think the point is that after such a good first game, we put our faith in the developer to make a good sequel. Obviously he failed us and proved that faith only leads to blind dissapointment.
Once you get the hang of it you should be fine. Thanks for trying though!