X8 Refights

The biggest change between refights and the stage encounters is you will have the option of using weakness attacks here. For most robots, this is slower, but a very effective backup strat.

Notably Gigabolt is weak to Zero's normal melee attacks with Trilobyte's weapon enhancement, so it is hard to not hit him with it. While other special attacks will not stun him the same way, they also grant extended iframes.

The top center of the room has a large health drop, a large weapon ammo drop, and a team attack gem. The gem is extremely valuable if you lost a character and need to get them back.

It is possible to soft lock on Gigabolt by using Zero fly. make sure you can land on the platform as you defeat him.

After Refights

It is possible to use Zero Fly to leave the room by going up and left. This is barely faster by skipping the door transition, but leaves the game's explosions in place during the Sigma 1 fight.