head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
Aiming banked bubble shots quickly while planning chain clears.

Execution · Practiced Mastery
A cinematic open-world western leaning on shooting feel and atmosphere.
Bust-a-Move 4 leans Execution (Practiced Mastery); Red Dead Redemption 2 leans Execution (Practiced Mastery).
Bust-a-Move 4 leans a little harder on execution, though the gap is small.
Bust-a-Move 4
Precise bubble aiming and bank shots under time pressure
Red Dead Redemption 2
Gunplay and Dead Eye reward aim and timing.
Bust-a-Move 4 leans a little harder on reads, though the gap is small.
Bust-a-Move 4
Versus mode allows mild human pressure timing
Red Dead Redemption 2
Enemies use scripted AI patterns, not adaptation.
Bust-a-Move 4 leans a little harder on variance, though the gap is small.
Bust-a-Move 4
Bubble colour feed is random but bounded
Red Dead Redemption 2
Some hunting and weather randomness, lightly hidden.
Bust-a-Move 4 leans a little harder on optimization, though the gap is small.
Bust-a-Move 4
Clearing patterns and pulley setups have known solutions
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.