head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.
Execution · Twitch Chaos
A kart racer testing driving control amid item-driven chaos against rivals.

Execution · Twitch Chaos
N64 couch classic where blue shells and shortcuts decide friendships.
Chocobo GP leans Execution (Twitch Chaos); Mario Kart 64 leans Execution (Twitch Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Chocobo GP
Drifting and racing lines demand consistent control
Mario Kart 64
Mini-turbo snaking and shortcut execution
Chocobo GP leans a little harder on reads, though the gap is small.
Chocobo GP
Anticipating rival item use in multiplayer races
Mario Kart 64
Couch rivals bait shells and fakes
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Chocobo GP
Magicite item pickups inject kart-racer randomness
Mario Kart 64
Item draws swing every race
Chocobo GP leans a little harder on optimization, though the gap is small.
Chocobo GP
Track knowledge and shortcut routing reward planning
Mario Kart 64
Shortcut and line knowledge is fully mapped
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.