head to head
Grand Theft Auto V asks more than Kirby: Nightmare in Dream Land, and the gap is reads.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Execution · Practiced Mastery
A gentle platformer where copying enemy abilities and light timing carries progress.
Grand Theft Auto V leans Execution (Practiced Mastery); Kirby: Nightmare in Dream Land leans Execution (Practiced Mastery).
Grand Theft Auto V leans a little harder on execution, though the gap is small.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Kirby: Nightmare in Dream Land
light platforming and timing precision
Grand Theft Auto V leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Kirby: Nightmare in Dream Land
scripted enemies, no adaptation
Grand Theft Auto V leans a little harder on variance, though the gap is small.
Grand Theft Auto V
Some mission and lobby randomness.
Kirby: Nightmare in Dream Land
minimal randomness
Grand Theft Auto V leans a little harder on optimization, though the gap is small.
Grand Theft Auto V
Heists, money loops, builds learnable.
Kirby: Nightmare in Dream Land
ability combos lightly 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.