Muse Dash is a rhythm game with a simple control scheme. Aside from menu navigation, the actual rhythm gameplay only requires two buttons.

The player character is on the left side of the screen, running constantly to the right. Threats come from the right side of the screen in one of two lanes - at ground level, or above it. When the threat reaches the player character, the player is supposed to hit a button to “knock back” the threat - one button for threats in the top lane (by default, any button on the left side of the controller will do) and a second button for threats in the bottom lane (right side of the controller). There are various twists and complications laid on top of this - threats that require hitting both buttons at the same time, or holding one or both buttons, or mashing the buttons repeatedly, and so on - but they are all dealt with using just two buttons.

(This is how it works on PC and I assume on Switch as well. Probably on mobile you tap either the left or right side of the screen instead?)

My gut reaction to seeing this was to assume that Muse Dash must be simple and easy, but there’s no actual reason this has to be true. In fact, Muse Dash gets quite difficult in most of the standard ways. Reducing the number of buttons used changes very little. After all, thinking back on all the rhythm games I’ve played it’s rare for the player to be required to press more than two buttons at once. Consider two scenarios:

1. In Muse Dash, a threat comes in the top lane and then one comes in the bottom lane.
2. In Hatsune Miku, there’s a prompt for D-Pad Left and then one for Circle.

The actual actions taken by the player here are very similar.

1. Read the on-screen cues.
2. Recognize you’ll want to press a button with your left hand and then one with your right hand.
3. (Miku only) Remember the controller layout and move your thumbs over the correct buttons.
4. Press with your left thumb and then with your right thumb.

The only real difference here is that Muse Dash doesn’t quiz the player on the controller layout or force them to move their thumbs. Lanes correspond directly to hands - top lane threats mean pressing with your left thumb, bottom lane threats mean pressing with your right thumb.

Personally, I’ve been taking rapid-fire quizzes on the PlayStation controller layout since 2000, so the extra step of remembering which button is where doesn’t trouble me much and I barely notice it. But to someone new to the controller and its apparently-arbitrary arrangement of buttons, this step makes the game far less approachable. They have to memorize the controller before they can be effective at the game. There’s an extra source of difficulty up front, and it isn’t the thing that makes the game interesting. The player has shown up to feel the rhythm and before they can do that they must perform rote memorization.

Now, this might be worth it. Guitar Hero on Easy or Medium is much like Muse Dash in that the player doesn’t have to move their hand and the colored notes correspond directly to fingers. Hard and Expert difficulties use more fret buttons than the player has available fingers, so they have to move their hand. Accessibility aside, I’d argue that the game is better when it forces you to move your hand because the game is about pretending to play the guitar which in real life also requires moving your hand. It’s extra effort and difficulty that isn’t strictly required - the game easily could have been designed to use only four frets - but it’s directly tied to what makes the game interesting, which is the fantasy of being, well, a guitar hero.

But what about Hatsune Miku? Your actions in this game are abstract and not a metaphor for anything specific except music itself. What matters is that they are rhythmic and flow-inducing. So what benefit is gained by adding controller memorization to the challenge?

I’m not ready to conclude that controller memorization adds no value to Miku-like games, but maybe trimming it out as Muse Dash does is just letting the interesting part of the game be the hard part.