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
Routing an ever-growing ball through fixed object layouts against the clock.

Optimization · Practiced Mastery
A Katamari-style game about routing through levels absorbing objects against a timer.
Katamari Damacy Reroll leans Optimization (Practiced Mastery); The Wonderful End of the World 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.
Katamari Damacy Reroll
Tank-control rolling under time pressure takes coordination
The Wonderful End of the World
Movement and timed absorption need modest dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Katamari Damacy Reroll
No opponents, just cluttered scripted playgrounds
The Wonderful End of the World
No adaptive opponent in this solo collection game
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Katamari Damacy Reroll
Object layouts are fixed every attempt
The Wonderful End of the World
Object placement is fixed, nothing random
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Katamari Damacy Reroll
Growth-route planning through object size tiers drives scores
The Wonderful End of the World
Efficient routing to absorb maximum objects in time is key
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.