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
Rapid capsule placement against a clock, with planning for chains under random pill draws.
Bust-a-Move 4 leans Execution (Practiced Mastery); Dr. Mario leans Execution (Practiced Mastery).
Dr. Mario leans a little harder on execution, though the gap is small.
Bust-a-Move 4
Precise bubble aiming and bank shots under time pressure
Dr. Mario
Fast capsule placement under rising speed decides clears
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
Dr. Mario
Versus mode exists but garbage exchange rewards speed, not prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Bust-a-Move 4
Bubble colour feed is random but bounded
Dr. Mario
Random pill colors against fixed virus layouts, quickly bounded
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Bust-a-Move 4
Clearing patterns and pulley setups have known solutions
Dr. Mario
Chain setups and virus-clearing order follow known 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.