Tarrasque vs Nightmare (Kirby: Right Back at Ya!): who would win?

Too close to call

Tarrasque · Dungeons & Dragons · Base

Tier

LOW 6-B, up to HIGH 6-A

Attack Potency

Small Country Level, up to Multi-Continent Level

Speed

Ftl, up to Ftl+

Durability

Small Country Level, up to Multi-Continent Level

Nightmare (Kirby: Right Back at Ya!) · Kirby · Base

Tier

LOW 6-B

Attack Potency

Small Country Level

Speed

Ftl+

Durability

Small Country Level

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