Bass.EXE vs Nucleogenic Cloud Being: who would win?

Nucleogenic Cloud Being favored — Slight edge (~55%)

Bass.EXE · Mega Man · Base

Tier

4-B, up to 2-C

Attack Potency

Solar System Level, up to Low Multiverse Level

Speed

Massively Hypersonic

Durability

Solar System Level, up to Low Multiverse Level

Nucleogenic Cloud Being · Star Trek · Base

Tier

4-B

Attack Potency

Solar System Level

Speed

Relativistic

Durability

Solar System Level

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