Bayonetta and Rodin vs Undertale

[Kiryu2012]

It's Bayonetta and Rodin, both at their best, versus all the bosses and enemies of Undertale(excluding Frisk and Chara), starting from the weakest and going up to the strongest.

In-character.

Rodin can make weapons out of the monsters that are beaten that Bayonetta can wield, allowing her to use some of the monsters' powers and attacks.

To the death.

 

[Megasean3000]

I'd say they sweep until they get to either Photoshop Flowey, Sans or Asriel. Photoshop Flowey because they can't get past his save/load, Sans because they can't hit him while he's dishing out pain and Asriel because his power is infinite and is Multiverse level while both Rodin and Bayonetta have finite power and are singular Universe level.