Memory Mix-Up is a memory game featuring many of Fantage's notable NPCs. It was originally in Star Café until the Fantage Cataclysm, when the game, along with many others, was moved to the Retro Arcade.
Players have to pick a card and choose another card that is the same as the first card they chose. Players pick cards by clicking on the card they want to flip. The game ends when the player has found all pairs available in the game. Finding a matching pair gives the player 100 points. Finding a pair that does not have matching cards removes 20 points from the player's score.
The following characters appear as cards in Memory Mix-Up:
- Spanish: Memoria (Memory)
- Japanese: メモリーミックス (Memorimikkusu, Memory Mix)