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

Optimization · Practiced Mastery
Solving drawn-physics puzzles with light platforming execution between them.

Optimization · Practiced Mastery
A forgiving platformer testing light execution and exploration routing through fixed level designs.
Max: The Curse of Brotherhood leans Optimization (Practiced Mastery); Psychonauts 2 leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Max: The Curse of Brotherhood
Platforming and marker-drawing under chase pressure need moderate dexterity
Psychonauts 2
Moderate platforming and combat timing, forgiving by design
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Max: The Curse of Brotherhood
No adaptive opposition - set-piece hazards only
Psychonauts 2
Solo adventure with no adaptive opponent anywhere
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Max: The Curse of Brotherhood
Puzzle solutions are fixed once seen
Psychonauts 2
Level layouts and collectibles are fixed once seen
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Max: The Curse of Brotherhood
Each physics puzzle has a discoverable intended solution
Psychonauts 2
Routing collectibles and matching psychic powers to encounters
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.