Mario: K = Attack/choose enemy/jump O = Up (to select enemy) M = Down (to select enemy) Luigi: A = Attack/choose enemy/jump Q = Up (to select enemy) Z = Down (to select enemy) While jumping on an enemy, press the attack button right as you hit them to do more damage. When an enemy is attacking you, use the jump button to dodge their attacks.
@Dolfus555 for the original