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 · Pure Mechanics
Spectacle hack-and-slash where reflexes and combo flow drive every fight.

Execution · Pure Mechanics
A classic beat-em-up demanding execution against scripted enemy waves.
God of War III leans Execution (Pure Mechanics); Teenage Mutant Ninja Turtles III: The Manhattan Project 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.
God of War III
Combo execution and QTE timing carry combat.
Teenage Mutant Ninja Turtles III: The Manhattan Project
beat-em-up timing and enemy juggling
God of War III leans a little harder on reads, though the gap is small.
God of War III
Bosses fully scripted spectacle.
Teenage Mutant Ninja Turtles III: The Manhattan Project
enemies run simple fixed scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
God of War III
Almost no randomness.
Teenage Mutant Ninja Turtles III: The Manhattan Project
minor enemy spawn randomness
God of War III leans a little harder on optimization, though the gap is small.
God of War III
Upgrade paths short and obvious.
Teenage Mutant Ninja Turtles III: The Manhattan Project
character choice and route memorization
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.
full breakdown
God of War III →
full breakdown
Teenage Mutant Ninja Turtles III: The Manhattan Project →