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 PS4 launch brawler starring a creature of relics that grows from tiny scrapper to building-sized titan.

Execution · Practiced Mastery
A scripted puzzle-platformer testing light timing and one-time puzzle solving.
Knack leans Execution (Practiced Mastery); Planet Alpha 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.
Knack
Dodge timing matters as fragile small Knack
Planet Alpha
Chase sequences and stealth timing demand modest precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Scripted goblin and robot patterns
Planet Alpha
Enemies follow fixed patrol scripts, no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Relic chest contents vary slightly
Planet Alpha
Everything is scripted; nothing random after one playthrough
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Knack
Size mechanics and gadget crafting are simple systems
Planet Alpha
Day-night puzzle solutions are fixed and learnable
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.