After completing ten lessons in Crashmo Park, you'll unlock the Crashmo Studio. Doing so allows you to design or import your own puzzles.
Finale
After beating the game, you can re-watch the Finale cutscene and ending credits in the Extras menu.
Gadgets
After you clear the first challenge with a gadget, you will unlock that gadget in Crashmo Studio.
Gadget
How to unlock
Doors
Clear Challenge 4-1.
Floating Block Gadget
Clear Challenge 2-1.
Manholes
Clear Challenge 3-1.
Move Switches
Clear Challenge 5-1.
Level B Challenges
Once you've solved all 100 puzzles in Crashmo Park, you'll unlock the B Challenges, which feature an additional 40 extra difficult puzzles.
Music Player
Finish the 100th Crashmo, completing the story mode.
Post-Game Rewards
Finish the game once by clearing the 100th Crashmo and you'll be able to view the ending from the Extras menu. You will also access the Music Player.
Prototypes
Clear 70 levels (puzzles) to unlock Prototypes.
Training Mode
After you've completed twenty lessons in Crashmo Park, you'll unlock the Training option in Papa Blox's menu. This area contains dozens of extra puzzles that are not available otherwise.
Crashmo Studio...