Mega Man Zero 3 Zero mini-game: Complete the game. Copy-X mini-game: Complete the game on hard. Fefnir mini-game: Complete every mission with 100 points. Leviathan mini-game: Complete every mission with 100 points. Harpuia mini-game: Complete the game with only the Zet Zaber and "S" rankings. Ciel mini-game: Complete the game with an "S" in every mission. Phantom mini-game: Complete the game with only the Buster Shot and "S" rankings. X mini-game: Complete the game, then use the same saved file to beat the game again. Hard difficulty setting: Complete the game, then highlight "New Game," hold L and press Start. Ultimate difficulty setting: Complete the game after collecting all the hidden disks. Then highlight "New Game," hold R and press Start.