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
A mobile kart racer testing simple line-holding against upgrade-gated progression.

Execution · Practiced Mastery
Accessible car control amid demolition chaos rather than precision racing.
Angry Birds Go! leans Execution (Practiced Mastery); Dirt Showdown leans Execution (Practiced Mastery).
Dirt Showdown leans a little harder on execution, though the gap is small.
Angry Birds Go!
Steering and boost timing decide downhill races
Dirt Showdown
Drifting, boosting and ramming need solid car control
Dirt Showdown leans a little harder on reads, though the gap is small.
Angry Birds Go!
Opponent karts run rubber-band AI, nothing to model
Dirt Showdown
Demolition modes reward predicting human movement a little
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Angry Birds Go!
Power-up rolls inject mild chaos
Dirt Showdown
Crash physics and pack chaos add randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Angry Birds Go!
Kart upgrades and racing lines dominate progression
Dirt Showdown
Event types and boost routes are quickly learnable
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.