head to head
Mario Kart 8 asks more than Kirby's Dream Buffet, and the gap is variance.

Execution · Twitch Chaos
A party racing game about rolling Kirby to collect the most strawberries.

Execution · Twitch Chaos
A kart racer where controlled chaos from random items tempers otherwise precise driving skill.
Kirby's Dream Buffet leans Execution (Twitch Chaos); Mario Kart 8 leans Execution (Twitch Chaos).
Mario Kart 8 leans a little harder on execution, though the gap is small.
Kirby's Dream Buffet
Rolling and dodging on courses needs decent control
Mario Kart 8
precise drifting and item timing matter
Kirby's Dream Buffet leans a little harder on reads, though the gap is small.
Kirby's Dream Buffet
Human racers add light prediction but items dominate
Mario Kart 8
minimal, mostly reacting not predicting
Mario Kart 8 leans clearly harder on variance.
Kirby's Dream Buffet
Item pickups and course chaos swing outcomes
Mario Kart 8
item boxes are heavily randomized
Mario Kart 8 leans clearly harder on optimization.
Kirby's Dream Buffet
Knowing shortcuts and ability use helps modestly
Mario Kart 8
track lines and item strategy 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.