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
Dodging scripted bullet patterns while solving each fight's pacifist logic.

Execution · Practiced Mastery
A cinematic open-world western leaning on shooting feel and atmosphere.
Deltarune leans Execution (Practiced Mastery); Red Dead Redemption 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Deltarune
Bullet-hell dodging in battles demands real reflexes
Red Dead Redemption 2
Gunplay and Dead Eye reward aim and timing.
Red Dead Redemption 2 leans a little harder on reads, though the gap is small.
Deltarune
Enemy patterns are charming but fully scripted
Red Dead Redemption 2
Enemies use scripted AI patterns, not adaptation.
Red Dead Redemption 2 leans a little harder on variance, though the gap is small.
Deltarune
Encounters and secrets are fixed once known
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Deltarune leans a little harder on optimization, though the gap is small.
Deltarune
ACT routes, sparing logic and TP economy are solvable
Red Dead Redemption 2
Loadouts and routes solvable but loose.
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.