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 · Pure Mechanics
The refined sequel adding freestyle scratching and head-to-head DJ battles to the turntable formula.

Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.
DJ Hero 2 leans Execution (Pure Mechanics); DOOM (2016) 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.
DJ Hero 2
Faster scratch patterns plus freestyle sections
DOOM (2016)
Aim, movement, glory-kill timing all peak.
DOOM (2016) leans a little harder on reads, though the gap is small.
DJ Hero 2
No adaptive element
DOOM (2016)
Demons scripted attack patterns.
DOOM (2016) leans a little harder on variance, though the gap is small.
DJ Hero 2
Charts fixed despite freestyle windows
DOOM (2016)
Minimal encounter randomness.
DOOM (2016) leans a little harder on optimization, though the gap is small.
DJ Hero 2
Score multiplier and euphoria routing
DOOM (2016)
Rune and weapon mod picks meaningful.
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.