-The collision box for the toads is too big. You should be able to walk past the toad on level 4.
-It should switch fairies when you release X instead of having to press it twice. Same applies for throwing.
-When switching fairies, it should show status icons for all fairies in the level so you can easily keep track of them.
-Launch pads need to be faster.
-Pressing Z near a strong fairy with a normal fairy should make the strong fairy pick up the normal fairy, and then automatically switch to the strong fairy.
-You should be able to put down fairies without throwing them.
-Add the ability to manually control the camera for the bigger levels.