head to head
DOOM (2016) asks more than PaRappa the Rapper 2, and the gap is optimization.

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

Execution · Pure Mechanics
Pure call-and-response rhythm timing with a freestyle layer for top ranks.
DOOM (2016) leans Execution (Pure Mechanics); PaRappa the Rapper 2 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.
DOOM (2016)
Aim, movement, glory-kill timing all peak.
PaRappa the Rapper 2
Hitting button cues on beat is the entire game
DOOM (2016) leans a little harder on reads, though the gap is small.
DOOM (2016)
Demons scripted attack patterns.
PaRappa the Rapper 2
Teachers rap fixed lines, nothing adapts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
DOOM (2016)
Minimal encounter randomness.
PaRappa the Rapper 2
Songs are fully deterministic call-and-response
DOOM (2016) leans clearly harder on optimization.
DOOM (2016)
Rune and weapon mod picks meaningful.
PaRappa the Rapper 2
Freestyle scoring for Cool rank rewards learned improvisation patterns
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.