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
Pure reaction timing - two buttons, escalating speed, zero forgiveness for mashing.

Execution · Pure Mechanics
Terry Cavanagh's minimalist reflex gauntlet of rotating walls measured in seconds survived.
One Finger Death Punch 2 leans Execution (Pure Mechanics); Super Hexagon leans Execution (Pure Mechanics).
Super Hexagon leans a little harder on execution, though the gap is small.
One Finger Death Punch 2
Two-button precision timing at extreme speed is everything
Super Hexagon
Sub-second reactions at extreme speed, pure reflex ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
One Finger Death Punch 2
Enemy approach cues are fully telegraphed scripts
Super Hexagon
No opponent, only walls
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
One Finger Death Punch 2
Wave composition shuffles slightly between rounds
Super Hexagon
Pattern order randomized from a known set
One Finger Death Punch 2 leans a little harder on optimization, though the gap is small.
One Finger Death Punch 2
Skill loadouts and restraint from mashing form light strategy
Super Hexagon
Pattern vocabulary is small, reaction is everything
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.