The fastest brawler to use is Mortis with his reload speed gadget. First Dash once then use his gadget right after. Then dash 3 more times and walk to reload 2 ammo slots. Dash around the left corner and hit the 2 corner bots. Then dash up and hit the 2 bots above them. Clear the bottom 2 rows of bots by quickly chaining 2 supers and hitting all of them. Dash up while hitting the 2 leftmost bots, chain 2 more supers and make sure they hit all of the remaining bots. https://www.speedrun.com/bsce/run/m3ndd74y here is a link to my own run