head to head
Comix Zone asks more than Half-Life 2, and the gap is execution.

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

Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.
Comix Zone leans Execution (Pure Mechanics); Half-Life 2 leans Execution (Pure Mechanics).
Comix Zone leans clearly harder on execution.
Comix Zone
Brutal one-life brawling demands clean play
Half-Life 2
Gravity gun and shooting demand precision.
Half-Life 2 leans a little harder on reads, though the gap is small.
Comix Zone
Enemies follow fixed attack scripts
Half-Life 2
Combine AI scripted, non-adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Comix Zone
Everything is placed and scripted
Half-Life 2
Almost no randomness.
Comix Zone leans clearly harder on optimization.
Comix Zone
Panel routes and item use are memorizable
Half-Life 2
Linear progression with no builds.
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.