Complete all the levels.
Collect all the Useless Relics in one level.
Collect half the Useless Relics.
Collect all the Useless Relics.
Kill 200 foes.
Kill 1000 foes.
Kill 25 foes by roaring at them.
Kill 100 foes by roaring at them.
Kill 8 enemies with a single roar.
Read all the signs.
Achieve all the hidden pixel mini-games.
Destroy 200 breakable blocks.