head to head
Mega Man asks more than Red Dead Redemption 2, and the gap is execution.

Execution · Practiced Mastery
Demanding platform execution plus a solvable boss-weakness ordering puzzle.

Execution · Practiced Mastery
A cinematic open-world western leaning on shooting feel and atmosphere.
Mega Man leans Execution (Practiced Mastery); Red Dead Redemption 2 leans Execution (Practiced Mastery).
Mega Man leans clearly harder on execution.
Mega Man
Pixel-precise jumps and shots against brutal fixed stages
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.
Mega Man
Robot Masters cycle rigid scripted patterns
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.
Mega Man
Nothing changes between attempts
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Mega Man leans clearly harder on optimization.
Mega Man
Boss-order weakness routing is a known solvable layer
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.