head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
Sequel platformer that swaps genres per level but always tests the hands.

Execution · Practiced Mastery
Memorising punishing side-scroller layouts and executing them without mistakes.
Earthworm Jim 2 leans Execution (Practiced Mastery); The Terminator leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Earthworm Jim 2
Varied set-piece levels demand precise control
The Terminator
Stiff jumps and enemy gauntlets demand precise platform timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Earthworm Jim 2
No adaptive opposition
The Terminator
Enemies are fully scripted patterns with no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Earthworm Jim 2
Deterministic levels and gimmicks
The Terminator
Nearly everything is fixed once levels are memorised
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Earthworm Jim 2
Learning each surreal level's fixed solution
The Terminator
Memorising layouts and ammo spots is most of the progress
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.