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 · Pure Mechanics
Cute two-button rhythm game where everything reduces to hitting notes on beat.

Execution · Pure Mechanics
Nintendo's quirky GBA rhythm collection where perfect timing on absurd minigames is everything.
Muse Dash leans Execution (Pure Mechanics); Rhythm Tengoku leans Execution (Pure Mechanics).
Muse Dash leans a little harder on execution, though the gap is small.
Muse Dash
Two-lane rhythm hits at high BPM are pure hands
Rhythm Tengoku
Frame-tight timing taps are the entire test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Muse Dash
Charts never adapt
Rhythm Tengoku
No opponent of any kind
Rhythm Tengoku leans a little harder on variance, though the gap is small.
Muse Dash
Fully deterministic note charts
Rhythm Tengoku
Cues are fully scripted and visible
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Muse Dash
Character buffs and chart memorization help margins
Rhythm Tengoku
Learning each minigame's quirky cue 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.