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

Execution · Pure Mechanics
A rail shooter about fast aiming through scripted Star Wars set-pieces.

Execution · Pure Mechanics
A classic beat-em-up demanding execution against scripted enemy waves.
Star Wars Trilogy Arcade leans Execution (Pure Mechanics); Teenage Mutant Ninja Turtles III: The Manhattan Project leans Execution (Pure Mechanics).
Star Wars Trilogy Arcade leans a little harder on execution, though the gap is small.
Star Wars Trilogy Arcade
Fast aiming and reflexes on rails define scoring
Teenage Mutant Ninja Turtles III: The Manhattan Project
beat-em-up timing and enemy juggling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Star Wars Trilogy Arcade
Enemies appear on fixed scripts, no adaptation
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.
Star Wars Trilogy Arcade
Deterministic enemy waves once learned
Teenage Mutant Ninja Turtles III: The Manhattan Project
minor enemy spawn randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Star Wars Trilogy Arcade
Memorizing wave patterns improves performance modestly
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
Star Wars Trilogy Arcade →
full breakdown
Teenage Mutant Ninja Turtles III: The Manhattan Project →