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
A test of 3D movement control with a deep routing layer underneath.

Execution · Practiced Mastery
Memorising punishing side-scroller layouts and executing them without mistakes.
Super Mario 64 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.
Super Mario 64
Perfect analog inputs trivialise precise jumps, dives and wall-kicks
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.
Super Mario 64
Solo platformer - no adaptive opponent anywhere
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.
Super Mario 64
Star locations and level layouts are fixed once seen
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.
Super Mario 64
Star routing and movement tech form a deep solvable layer
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.