Martians vs Zombot Multi-stage Masher: who would win?

Too close to call

Martians · Terraria · Base

Tier: 8-B
Attack Potency: City Block Level+
Speed: Unknown
Durability: Unknown

Zombot Multi-stage Masher · Plants vs. Zombies · Base

Tier: 8-B
Attack Potency: City Block Level
Speed: Immobile
Durability: City Block Level+

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