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
Atari's foundational arcade game of bouncing a ball to clear brick walls.

Execution · Practiced Mastery
One-thumb tap-timing precision over fixed courses with solvable coin routes.
Breakout leans Execution (Pure Mechanics); Super Mario Run leans Execution (Practiced Mastery).
Breakout leans a little harder on execution, though the gap is small.
Breakout
Paddle precision is essentially the entire game
Super Mario Run
One-handed tap timing for coin lines demands precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Breakout
No opponent
Super Mario Run
Auto-runner with no adaptive opponent; Toad Rally is asynchronous
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Breakout
Ball physics are deterministic
Super Mario Run
Courses are fixed and fully learnable
Super Mario Run leans a little harder on optimization, though the gap is small.
Breakout
Tunneling strategy to the top row helps
Super Mario Run
Routing perfect coin runs is a solvable layout puzzle
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.