- Geometric backgrounds, metal frame, and Twin Block
Successfully complete Clear Game, Uranoid, and Quest Game modes to unlock seven geometric backgrounds, a metal frame, and Twin Block.

- Uranoid mini-game
Successfully complete all levels and save your friends to unlock the Uranoid mini-game at the main menu. In the Japanese version of the game, press R, Left, Right, L, Right, R at the title screen to unlock the Uranoid mini-game. If you entered the code correctly, you will hear a sound.

- Play as Artemis
Successfully complete Zone V' in Quest mode to unlock Artemis.

- Original Vaus ship
Successfully complete all Quest mode levels to unlock the Original Vaus ship.

- Happy Smiling background music
Successfully complete Eta-5 in Uranoid with a score of at least 400,000 points to unlock the Happy Smiling background music.

- Captain Neo background music
Successfully complete Theta-5 in Uranoid with a score of at least 400,000 points to unlock the Captain Neo background music.

- Play as Neith
Successfully complete Zone Z' in Quest mode to unlock Neith.

- Play as Operon
Successfully complete Zone W in Quest mode to unlock Operon.

- Play as Rhea
Successfully complete Zone V in Quest mode to unlock Rhea.

- Revenge Of Arkanoid background music
Successfully complete Lota in Uranoid with a score of at least 400,000 points to unlock the Revenge Of Arkanoid background music.