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.

Optimization · Practiced Mastery
A Revolution-era Paris entry built around dense crowds and open-ended blackbox assassinations.

Optimization · Pure Optimization
Zelda-style puzzle dungeons and exploration with low-pressure combat.
Assassin's Creed Unity leans Optimization (Practiced Mastery); Star Fox Adventures leans Optimization (Pure Optimization).
Assassin's Creed Unity leans a little harder on execution, though the gap is small.
Assassin's Creed Unity
Refined parkour, still forgiving combat
Star Fox Adventures
Lock-on staff combat is deliberately forgiving
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Unity
Co-op partners face scripted guards
Star Fox Adventures
Dinosaurs and bosses are Rare-scripted patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Unity
Fixed sandbox assassinations
Star Fox Adventures
Dinosaur Planet is fixed and explorable
Star Fox Adventures leans a little harder on optimization, though the gap is small.
Assassin's Creed Unity
Gear builds and blackbox approach planning
Star Fox Adventures
Zelda-style dungeon puzzles and item routing are the substance
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.