head to head
Punch-Out!! 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
A boxing game about memorizing scripted opponent tells and executing precise dodges.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Punch-Out!! leans Execution (Practiced Mastery).
Punch-Out!! leans clearly harder on execution.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Punch-Out!!
precise dodge and punch timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Punch-Out!!
scripted opponent tells, not truly adaptive
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
Punch-Out!!
minimal randomness in fights
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
Punch-Out!!
memorizing fixed opponent attack patterns
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.