Mushcargot vs Mister Nobody: who would win?

Too close to call

Mushcargot · Godzilla · Base

Tier: LOW 7-C
Attack Potency: Small Town Level
Speed: Superhuman
Durability: Small Town Level

Mister Nobody · DC · Base

Tier: LOW 7-C
Attack Potency: Small Town Level
Speed: Unknown
Durability: Unknown

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.