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

Execution · Practiced Mastery
A straightforward brawler testing crowd management with basic timing.

Execution · Pure Mechanics
A cute endless runner starring a dog dodging traffic.
Fighting Force leans Execution (Practiced Mastery); Puppy Cross 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.
Fighting Force
Crowd control and weapon swings need basic timing
Puppy Cross
Simple lane-dodging reflex timing
Fighting Force leans a little harder on reads, though the gap is small.
Fighting Force
Enemy waves attack in fixed patterns
Puppy Cross
No opponents present
Puppy Cross leans a little harder on variance, though the gap is small.
Fighting Force
Levels and pickups are static
Puppy Cross
Obstacle spawn randomness varies runs
Fighting Force leans a little harder on optimization, though the gap is small.
Fighting Force
Route choices and weapon use are shallow systems
Puppy Cross
Minimal systems, casual endless runner
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.