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.

Execution · Practiced Mastery
Tests kart-racing line execution across three vehicle types with item luck on top.

Execution · Practiced Mastery
A cinematic open-world western leaning on shooting feel and atmosphere.
Diddy Kong Racing DS leans Execution (Practiced Mastery); Red Dead Redemption 2 leans Execution (Practiced Mastery).
Diddy Kong Racing DS leans a little harder on execution, though the gap is small.
Diddy Kong Racing DS
Drift boosting across car, hover and plane handling
Red Dead Redemption 2
Gunplay and Dead Eye reward aim and timing.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Diddy Kong Racing DS
AI rivals are scripted; multiplayer prediction stays shallow
Red Dead Redemption 2
Enemies use scripted AI patterns, not adaptation.
Diddy Kong Racing DS leans a little harder on variance, though the gap is small.
Diddy Kong Racing DS
Balloon item pickups swing race positions
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Diddy Kong Racing DS
Zipper routes and vehicle choice per track are learnable
Red Dead Redemption 2
Loadouts and routes solvable but loose.
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.