Nintendo Quarrel (The war that led to Nintendo‘s invasion of reality)

4 days prior to the events of Universal Clash Episode 1, the Villain's of the Nintendo Universe were rallied by Leah Toadstool the older sister of Princess Peach who was credited as being the most cruel and wicked amongst the Nintendo Universe, with the goal of breaking through the Universal Barrier and entering the Real World.

The Heroes scramble hard to prevent this from happening, leading up to a War within the Nintendo Universe between the Heroes and Villain's in order to prevent the Villain's from reaching the Universal Boundary and find a way to Teleport through.