head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Pure Mechanics
Open-world racing testing car control and line discipline with light tuning underneath.

Execution · Pure Mechanics
A rail shooter testing aim and reflexes through scripted space battles.
Forza Horizon 2 leans Execution (Pure Mechanics); Star Wars Arcade leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon 2
Racing lines, braking points and car control lead everything
Star Wars Arcade
Aiming and dodging in rail combat decides survival
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon 2
Drivatar AI mimics styles but stays effectively scripted
Star Wars Arcade
Enemy ships follow scripted attack patterns
Star Wars Arcade leans a little harder on variance, though the gap is small.
Forza Horizon 2
Weather shifts grip slightly; courses are fully known
Star Wars Arcade
Minor variation in enemy approaches
Forza Horizon 2 leans a little harder on optimization, though the gap is small.
Forza Horizon 2
Car tuning and route knowledge reward preparation
Star Wars Arcade
Memorizing waves and conserving shields helps
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.