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

Execution · Practiced Mastery
A grittier crime story where weighty driving and gunplay carry the experience.

Execution · Pure Mechanics
A casual carnival pointing test with light high-score target memory.
Grand Theft Auto IV leans Execution (Practiced Mastery); Toy Story Mania! 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.
Grand Theft Auto IV
Heavier driving and cover shooting reward control.
Toy Story Mania!
Rapid target pointing and firing is the whole test
Grand Theft Auto IV leans a little harder on reads, though the gap is small.
Grand Theft Auto IV
Scripted AI, no adaptive opponent modeling.
Toy Story Mania!
Galleries are scripted carnival sequences
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto IV
Minor mission variance.
Toy Story Mania!
Bonus target spawns vary slightly between plays
Grand Theft Auto IV leans a little harder on optimization, though the gap is small.
Grand Theft Auto IV
Mission routing and weapon picks learnable.
Toy Story Mania!
Learning high-value target locations adds thin strategy
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.