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.

Optimization · Practiced Mastery
Gentle adventure about painting living murals to revive a polluted town.

Optimization · Practiced Mastery
A four-player Wii Kirby romp gathering ship parts for the stranded alien Magolor.
Concrete Genie leans Optimization (Practiced Mastery); Kirby's Return to Dream Land leans Optimization (Practiced Mastery).
Kirby's Return to Dream Land leans a little harder on execution, though the gap is small.
Concrete Genie
Light painting motions and gentle platforming
Kirby's Return to Dream Land
Easygoing main game; EX mode adds modest demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Concrete Genie
No adversary; bullies are scripted scenes
Kirby's Return to Dream Land
Bosses are pattern-scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Concrete Genie
Little hidden beyond exploration
Kirby's Return to Dream Land
Energy sphere hiding spots are static secrets
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Concrete Genie
Finding paintable walls and puzzle solutions
Kirby's Return to Dream Land
Super ability timing and sphere collection are solvable
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.