As you walk through a stone hallway, not really sure where you're going, you become aware of faint gunfire and explosions coming from somewhere straight ahead. Out of curiosity, you quickly proceed forward, while the noise only intensifies as you get closer.

You eventually come to a set of wooden doors that are easily pushed open, and you find yourself in a large room, where two nearly identical, 8-winged humanoid machines are doing battle. Or rather, they were until you came along.

The one on the left, colored blue and with the text "V1" across its chest, comes to a skidding stop on the floor mid-slide, and swiftly hops to its feet. The one on the right, colored red and labelled "V2", spins some kind of large revolver in one of its hands, before stopping.

The two machines just stare at you with their monocular "heads", before the red one suddenly raises an arm and points at you, then at its blue rival and then at itself. It's seemingly inviting you to watch their duel...