Pocket Puyo Puyo Tsuu

Tsu's main mode is a tower where Arle Nadja selects opponents to battle via roulette. Each "floor" of the tower has an EXP total that the player must reach in order to advance. If the player defeats all of a floor's opponents without meeting the goal, one final opponent will appear. If, after defeating this extra opponent, the player still fails to meet the goal, Arle is booted from the tower and the game ends.

Résumé

Pocket Puyo Puyo Tsuu is the Game Boy port of the arcade game Puyo Puyo Tsuu.