head to head
Sonic Riders: Zero Gravity asks more than Grand Theft Auto: San Andreas, and the gap is execution.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.

Execution · Practiced Mastery
Hoverboard racing built on trick timing and learned gravity-shortcut routes.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Sonic Riders: Zero Gravity leans Execution (Practiced Mastery).
Sonic Riders: Zero Gravity leans clearly harder on execution.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Sonic Riders: Zero Gravity
Trick timing and gravity maneuvers demand constant precise inputs
Sonic Riders: Zero Gravity leans a little harder on reads, though the gap is small.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Sonic Riders: Zero Gravity
Versus mode adds minimal opponent prediction
Grand Theft Auto: San Andreas leans a little harder on variance, though the gap is small.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Sonic Riders: Zero Gravity
Tracks are fixed; almost nothing hidden
Grand Theft Auto: San Andreas leans a little harder on optimization, though the gap is small.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
Sonic Riders: Zero Gravity
Gear choice and gravity-shortcut routing separate the field
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.