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

Execution · Pure Mechanics
Comic-panel beat 'em up notorious for punishing health drain and tough fights.

Execution · Pure Mechanics
A Tetris variant testing piece-placement speed with multiple ruleset modes.
Comix Zone leans Execution (Pure Mechanics); Tetris Worlds 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.
Comix Zone
Brutal one-life brawling demands clean play
Tetris Worlds
Fast precise piece placement under speed is the lead
Tetris Worlds leans a little harder on reads, though the gap is small.
Comix Zone
Enemies follow fixed attack scripts
Tetris Worlds
Multiplayer adds light prediction but mostly solo speed
Tetris Worlds leans a little harder on variance, though the gap is small.
Comix Zone
Everything is placed and scripted
Tetris Worlds
Piece bag is random but bounded and mappable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Comix Zone
Panel routes and item use are memorizable
Tetris Worlds
Stacking strategies have known optimal patterns
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.