The idea sounds interesting, unfortunately, if you'll put low level mooks in the deathmatch arena in 1-on-1 will be a breeze.
What I could recommend, though, is to use the elements of the dynamic fight combined with the death match and re-group six to eight mooks with different styles in teams, for example: Scene 1-1: Derpland boys
- (all unarmed, only a single bar full) SOR2 Galsia, SOR2 Donnie, SOR3 Galsia, SOR1 Galsia, SOR3 Donnie, Galvice and Cody (this one with more health). Scene 1-2: Punx not dead
- SOR2 Signal, SOR3 Signal, SOR1 Signal, BKIII Garnet, SOR3 Soozie, Jack.Scene 1-3: Armed and dangerous 1
- SOR2 Galsia (knife), SOR2 Donnie (pipe), SOR3 Galsia (knife), SOR Galsia (knife), SOR1 Galsia (metal bat), SOR3 Donnie (pipe, *gosh, these fuckers are PAIN with it), Jack.
just some team examples.
They can fight in standard arenas or in death match arenas, obviously, the deathmatch arenas will brings of tons of challenges.
The idea is to make combination of one on one enemies but putting them together in groups to add more challenge. Even some special pairings if you must, for example, one SOR3 Galsia paired up with a SOR Bongo so they do their famous grab and throw team technique. Besides, some pairs are kind of essential: Yasha & Onihime, Mona & Lisa, Jack & Slash, Galsia & Donovan, Barbon & Electra, etc.
I dunno, these are just ideas out there, take whatever you consider it might work.
Oh, you might also like to consider to tone down the swearing in the dialogues, just saying.