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 · Pure Mechanics
Pure car control over loose surfaces, sharpened by memorising every stage.

Execution · Practiced Mastery
An endless runner testing reaction timing plus character loadout building.
Colin McRae Rally 2.0 leans Execution (Pure Mechanics); Cookie Run: OvenBreak leans Execution (Practiced Mastery).
Colin McRae Rally 2.0 leans a little harder on execution, though the gap is small.
Colin McRae Rally 2.0
Surface-specific car control at speed decides every stage
Cookie Run: OvenBreak
Jump and slide timing decides how far you run
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Colin McRae Rally 2.0
Time-trial format - no adaptive opponent on the stage
Cookie Run: OvenBreak
Endless runner, no opponent to model
Cookie Run: OvenBreak leans a little harder on variance, though the gap is small.
Colin McRae Rally 2.0
Mid-stage surprises minimal once pace notes are internalised
Cookie Run: OvenBreak
Some randomized obstacle and bonus spawns
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Colin McRae Rally 2.0
Memorising stages and tuning setups converges times steadily
Cookie Run: OvenBreak
Cookie and pet loadout building optimizes scores
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.