head to head
Neither is simply harder - they are hard in different places. DOOM (2016) demands more optimization; Geki Yaba Runner: Anniversary Edition demands more variance.

Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.

Execution · Pure Mechanics
A frantic endless runner with retro arcade style.
DOOM (2016) leans Execution (Pure Mechanics); Geki Yaba Runner: Anniversary Edition leans Execution (Pure Mechanics).
DOOM (2016) leans a little harder on execution, though the gap is small.
DOOM (2016)
Aim, movement, glory-kill timing all peak.
Geki Yaba Runner: Anniversary Edition
fast reflex timing for endless running
DOOM (2016) leans a little harder on reads, though the gap is small.
DOOM (2016)
Demons scripted attack patterns.
Geki Yaba Runner: Anniversary Edition
no opponent, solo endless runner
Geki Yaba Runner: Anniversary Edition leans clearly harder on variance.
DOOM (2016)
Minimal encounter randomness.
Geki Yaba Runner: Anniversary Edition
procedural obstacle generation
DOOM (2016) leans clearly harder on optimization.
DOOM (2016)
Rune and weapon mod picks meaningful.
Geki Yaba Runner: Anniversary Edition
minor route/upgrade optimization
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.