Chuuroh City concept art: Successfully complete Challenge 18.
Chuuroh City music: Successfully complete Challenge 17.
Enemy 'Masked Raider' model: Successfully complete Challenge 19.
Enemy 'Mr. Slater' model: Successfully complete Challenge 10.
Enemy 'Squidman' model: Successfully complete Challenge 13.
Enemy 'Triple Zero' model: Successfully complete Challenge 5.
Enemy 'Whale-Bot 3000' model: Successfully complete Challenge 16.
Hibashira Plains concept art: Successfully complete Challenge 9.
Hibashira Plains music: Successfully complete Challenge 8.
Mitsurin Jungle concept art: Successfully complete Challenge 2.
Mitsurin Jungle music: Successfully complete Challenge 1.
Mokuzu Depths concept art: Successfully complete Challenge 4.
Mokuzu Depths music: Successfully complete Challenge 3.
Sekai Outpost concept art: Successfully complete Challenge 15.
Sekai Outpost music: Successfully complete Challenge 14.
Sekihi Belt concept art: Successfully complete Challenge 12.
Sekihi Belt music: Successfully complete Challenge 11.
Sunahara Desert concept art: Successfully complete Challenge 7.
Sunahara Desert music: Successfully complete Challenge 6.
Zenshoh Station concept art: Successfully complete Challenge 21.
Zenshoh Station music: Successfully complete Challenge 20.