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

Execution · Pure Mechanics
Forgiving spectacle combat that lightly tests combo execution.

Execution · Pure Mechanics
A lovingly curated Beatles career retrospective playable as a full band with vocal harmonies.
Star Wars: The Force Unleashed II leans Execution (Pure Mechanics); The Beatles: Rock Band 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.
Star Wars: The Force Unleashed II
Combo timing and dodges carry the spectacle combat
The Beatles: Rock Band
Gentler charts plus three-part vocal harmonies
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Star Wars: The Force Unleashed II
Stormtroopers follow simple fixed scripts
The Beatles: Rock Band
Nothing adapts
Star Wars: The Force Unleashed II leans a little harder on variance, though the gap is small.
Star Wars: The Force Unleashed II
Encounters are scripted and identical every run
The Beatles: Rock Band
Fixed charts
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Star Wars: The Force Unleashed II
Upgrade choices barely matter against forgiving difficulty
The Beatles: Rock Band
Harmony arrangement and overdrive timing
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.