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
An early arcade climber demanding tight, repeatable jump execution.

Execution · Pure Mechanics
A rhythm game testing pure input accuracy across one band's fixed setlist.
Donkey Kong Junior leans Execution (Pure Mechanics); Green Day: Rock Band leans Execution (Pure Mechanics).
Green Day: Rock Band leans a little harder on execution, though the gap is small.
Donkey Kong Junior
precise vine-climbing and jump timing
Green Day: Rock Band
Hitting note highways accurately is literally the entire game
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong Junior
enemies follow fixed patrol patterns
Green Day: Rock Band
Charts never react to the player
Donkey Kong Junior leans a little harder on variance, though the gap is small.
Donkey Kong Junior
minor enemy timing variance
Green Day: Rock Band
Every chart is fixed and fully visible
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Donkey Kong Junior
minimal route memorization needed
Green Day: Rock Band
Star-power activation points add a thin strategy layer
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.