uhh. yeah animating a 3d star in 2d is way too hard for me. see inside the green star is for a section (might be unused if it's possible if level layouts can all be loaded in at once) yellow is how to finish a level.
I might make a vote for if the game should be 2d or 3d. If the game ends up being 2d, you will have complete control of the 3d engine you have been working on for a new cap'n toad project, I will help with artwork and music if you need it. this decision is not final I am just wondering if it's ok with you before starting the vote, As I am not familiar with working with a 3d engine.
