Finish all the levels with all three badges.
Change the tempo after unlocking free tempo mode.
Play through a level with the highest tempo using free tempo mode.
Play through a level with the lowest tempo using free tempo mode.
Get all three badges on a level.
Get all three badges on a level in a single run.
Get every First Try badge.
Get every Perfect Tempo badge.
Get every Pickups badge.
Play with at least two players.
Play with four players.
Die a hundred times.
Die a thousand times.
Beat the first level group.
Beat the last level group.
Beat the last level.
Find the hidden debug level.