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

Execution · Practiced Mastery
A retro-styled action platformer with pogo-stick combat.

Execution · Pure Mechanics
Faster, harder Wolfenstein blending pulp story with brutal shootouts.
Shovel Knight leans Execution (Practiced Mastery); Wolfenstein II: The New Colossus leans Execution (Pure Mechanics).
Wolfenstein II: The New Colossus leans a little harder on execution, though the gap is small.
Shovel Knight
Pogo combat and platforming need timing
Wolfenstein II: The New Colossus
Aggressive dual-wield combat punishes sloppy aim.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Shovel Knight
Scripted boss patterns, not reads
Wolfenstein II: The New Colossus
Enemies scripted in arena waves.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Shovel Knight
Deterministic stages
Wolfenstein II: The New Colossus
Minimal randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Shovel Knight
Relic and upgrade choices shape runs
Wolfenstein II: The New Colossus
Weapon upgrades and contraptions modest.
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.