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 · Pure Mechanics
Namco's lavish Galaga sequel adds dimension warps and ship-stacking to classic formation shooting.
Broforce leans Execution (Pure Mechanics); Galaga '88 leans Execution (Pure Mechanics).
Galaga '88 leans a little harder on execution, though the gap is small.
Broforce
Run-and-gun reflexes amid constant explosions
Galaga '88
Precise dodging and shooting through dense dive patterns.
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
Galaga '88
Aliens attack on choreographed scripts.
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
Galaga '88
Dive timing and dimension-warp triggers vary.
Galaga '88 leans a little harder on optimization, though the gap is small.
Broforce
Knowing each bro's kit and level layouts helps
Galaga '88
Triple-ship management and warp routing reward planning.
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.