It also says "tap to ARROWs" (typo "tap the ARROWs"?) but there aren't any arrows to tap either.
Tested on: Chrome Version 144.0.7559.60
Couldn't get beyond this screen unfortunately.
Slightly related, there was a VR game (that unfortunately got absolutely buried under the significantly more successful Beat Saber) some years back called Sound Boxing that let people create step tracks to songs on YouTube, and you would punch, duck, bob, and weave to the beat. I absolutely loved it.
Add a debug=true in the local storage if there is not much logs.
[INFO] DanceJump: Tap-to-Beat enabled (fallback mode) - UI hidden until needed
game.js:35 [INFO] DanceJump: Beat Tracker enabled - attempting audio analysis
game.js:35 [INFO] DanceJump: Background Tracker Started successfully
game.js:35 [INFO] DanceJump: Stage 1 - Starting auto-generation with placeholder chart
So good job! Tried it with this song:https://www.youtube.com/watch?v=qMWqNXVCFiw
Feedback:
Default steps were pretty simple, the "arrow" on the right only lets you pause/unpause. I couldn't figure out an easy way to crank up the difficulty. You might even consider an auto-increase of difficulty. As they get more correct, increase the density of arrows as the song progresses.