Collect all medals in Permafrost Mountain.
Collect all medals in Clock Tower.
Perform a 30x combo. (custom levels doesn't count)
Perform a 50x combo. (custom levels doesn't count)
Perform a 99x combo. (custom levels doesn't count)
Create and test a level using level editor.
Complete a level in more than 3 minutes.
Complete a level in less than 40 seconds.
Complete a level in less than 20 seconds.