head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Pure Mechanics
Twitch tank duels while protecting a base from scripted enemy waves.

Execution · Practiced Mastery
Sequel luchador metroidvania with even tighter platforming gauntlets.
Battle City leans Execution (Pure Mechanics); Guacamelee! 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Battle City
Tank aim and dodge timing under pressure decides every stage
Guacamelee! 2
Chicken-form gauntlets push precision platforming further
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Battle City
Enemy tanks follow simple scripted routines, nothing adaptive
Guacamelee! 2
Scripted enemies and bosses
Battle City leans a little harder on variance, though the gap is small.
Battle City
Spawn order and power-ups add mild randomness per stage
Guacamelee! 2
Deterministic authored challenges
Guacamelee! 2 leans a little harder on optimization, though the gap is small.
Battle City
Base-defense positioning and brick management have known best answers
Guacamelee! 2
Upgrade trees and route knowledge
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.