A Koopa's Revenge 2 is a Mario Flash fangame and the sequel to A Koopa's Revenge. It expands on concept of the villain's lackeys being the playable protagonists where it's not just Bowser and his minions getting revenge, but they're also fighting back against the forces of the evil Mario and his mustache twirling actions. This time, you can choose between three characters: a Koopa Troopa, a Shy Guy, and a Goomba, each having their own abilities. With that character, it's up to you to take down the comically evil Mario and his own minions.

This time, Potato achieves full completion (every level completed, all 75 Silver Coins collected, all Koopalings defeated, all 4 Switch Palaces pressed, bloodshed particles active, getting the Infinite 1-Up and Rush) without using any in-game cheat codes and defeats the true final boss as Shy Guy in record time.