There are five gameplay modes that are hidden: Non-Stop Fever, Excavation, Giant Puyo, Ice block, and Spinner. To unlock these modes, repeatedly buy the item in the fourth tab of the shop until you unlock one of these modes. You must unlock all five individually this way.
Unlock the following bonuses by performing the corresponding tasks at the indicated part of the game:
BONUS - HOW TO UNLOCK Choose Random Mode - Press X while in a mode select menu. Harder CPU in Battles - Hold Select while selecting the CPU character (in Endless modes, hold select while selecting your character) Instant Win - Press L + R + X + B + Y + A during a match. Note that you will only earn 1 point at the end of the match when you use this cheat (as if you lost). Set Player as CPU - Hold Select while selecting the difficulty during the start of the match. Show Nuisance Multiplier - Press Select during a match. (Pressing Select again hides it.) Use Classic Voice Pattern - Hold Select while selecting a mode. This only works for Arle, Schezo, Rulue, Satan, Carbuncle, Suketoudara, Witch, and Draco for Puyo Puyo, Puyo Puyo Use Dropsets in Endless Modes - Hold Select while selecting your character.