The Red Stone of Aja vs Gen Narumi: who would win?

The Red Stone of Aja favored — Slight edge (~55%)

The Red Stone of Aja · JoJo's Bizarre Adventure · Maximum Power

Tier

7-A

Attack Potency

Mountain Level+

Speed

Speed Of Light

Durability

Unknown

Gen Narumi · Kaiju No. 8 · Numbers Weapon Suit

Tier

7-A, up to HIGH 6-B

Attack Potency

Mountain Level+, up to Large Country Level

Speed

High Hypersonic+

Durability

Mountain Level+, up to Multi-Continent Level

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