Shadow the Hedgehog vs. Mewtwo & Kratos
Because Mewtwo was my first thought when it came to who Shadow should fight. But apparently he's already lost to Shadow here. Shadow also beat Kratos but that was before any of the later GOW games. Not sure if that matters.
Regardless, can the duo win?
Scenario 1: Shadow's speed is equal to theirs.
Mewtwo and Kratos are at their strongest
Scenario 2: Shadow is at full power too