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 · Pure Mechanics
Precision 3D platformer of narrow corridors, crates, and unforgiving jumps.

Execution · Practiced Mastery
Classic platforming testing precise execution and the solvable boss-weakness order.
Crash Bandicoot leans Execution (Pure Mechanics); Mega Man 4 leans Execution (Practiced Mastery).
Crash Bandicoot leans a little harder on execution, though the gap is small.
Crash Bandicoot
Tight jumps on narrow paths punish slop
Mega Man 4
Precise jumps and buster timing through gauntlet stages
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Crash Bandicoot
Hazards are fixed patterns
Mega Man 4
Robot Masters cycle fixed memorisable patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Crash Bandicoot
Everything scripted and placed
Mega Man 4
Nothing random once stages are learned
Mega Man 4 leans a little harder on optimization, though the gap is small.
Crash Bandicoot
Box routes and gem requirements are learnable
Mega Man 4
Weapon-weakness ordering and stage routing are the meta-puzzle
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.