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 3D platformer about netting escaped monkeys with dual-analog gadgets.

Execution · Practiced Mastery
A slower 2.5D Kirby built around mixing two copy abilities into inventive combo powers.
Ape Escape leans Execution (Practiced Mastery); Kirby 64: The Crystal Shards 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.
Ape Escape
Dual-analog gadget control and platforming
Kirby 64: The Crystal Shards
Relaxed platforming, some tricky shard grabs
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Ape Escape
Monkeys flee on simple scripts
Kirby 64: The Crystal Shards
Fully scripted enemies
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Ape Escape
Fixed level layouts
Kirby 64: The Crystal Shards
Shard hiding spots unknown only once
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Ape Escape
Gadget choice and capture routes are learnable
Kirby 64: The Crystal Shards
Power-combo crafting solves shard puzzles
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.