It is a fight of 1vs1. You are in the teleporter at the same time and fight in a central dome. There are two stages, and there is a large stage and dome-shaped stage. When you win, I can change a stage. I can watch a game of it.
When the method shoots the switch which comes out when I defeated an enemy, a new stage comes out. A switch leaves the dome around. In the large stage, a switch comes out to the window.





