After completing ten lessons in Crashmo Park, you'll unlock the Crashmo Studio. Doing so allows you to design or import your own puzzles.
After beating the game, you can re-watch the Finale cutscene and ending credits in the Extras menu.
After you clear the first challenge with a gadget, you will unlock that gadget in Crashmo Studio.
Finish the 100th Crashmo, completing the story mode.
You unlock prototypes by clearing 70 levels.
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.
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.