head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

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

Execution · Pure Mechanics
A Super Pang descendant testing reflex dodging and vertical aim under swarm pressure.
Battle City leans Execution (Pure Mechanics); The Bug Butcher leans Execution (Pure Mechanics).
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
The Bug Butcher
Dodging splitting bugs while shooting vertically demands constant twitch precision
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
The Bug Butcher
Bugs follow scripted bounce physics, not adaptive minds
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Battle City
Spawn order and power-ups add mild randomness per stage
The Bug Butcher
Spawn patterns and power-up drops add mild randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Battle City
Base-defense positioning and brick management have known best answers
The Bug Butcher
Combo upkeep and upgrade choices have learnable optimal lines
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.