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 · Practiced Mastery
A memorization bullet-hell shooter testing reflexes against fixed enemy patterns.

Execution · Pure Mechanics
Comic-panel beat 'em up notorious for punishing health drain and tough fights.
1917: The Alien Invasion DX leans Execution (Practiced Mastery); Comix Zone 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.
1917: The Alien Invasion DX
Dodging dense bullet patterns at speed is the lead skill
Comix Zone
Brutal one-life brawling demands clean play
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
1917: The Alien Invasion DX
Enemies follow scripted waves, not adaptive behaviour
Comix Zone
Enemies follow fixed attack scripts
1917: The Alien Invasion DX leans a little harder on variance, though the gap is small.
1917: The Alien Invasion DX
Patterns hidden until memorized across runs
Comix Zone
Everything is placed and scripted
1917: The Alien Invasion DX leans a little harder on optimization, though the gap is small.
1917: The Alien Invasion DX
Memorizing fixed bullet patterns and routing is core
Comix Zone
Panel routes and item use are memorizable
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.