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 explosively destructible run-and-gun starring parody action-movie heroes.

Execution · Practiced Mastery
An arcade-style runner/spinning obstacle game.
Broforce leans Execution (Pure Mechanics); Spin Rush leans Execution (Practiced Mastery).
Broforce leans a little harder on execution, though the gap is small.
Broforce
Run-and-gun reflexes amid constant explosions
Spin Rush
precise timing of spins and jumps in runs
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Broforce
Enemies are dumb scripts
Spin Rush
no adaptive opponent present
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Broforce
Random bro assignments and destructible chaos shake runs
Spin Rush
randomized obstacle and track elements
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Broforce
Knowing each bro's kit and level layouts helps
Spin Rush
route and upgrade optimization across runs
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.