A 45-second procession. Hold the phone in both hands: your thumbs tap the three step buttons, and a sharp tilt up or down rings your bells. Headphones recommended.
Calibrate: tilt the phone sharply 3 times up and 3 times down, so the game learns your move.
Play: pick a song and hit each note as it reaches the line. Grey bars mean stand still: ringing there costs points.
Just want the raw sensor numbers? Open the shake test.
Calibration
Tilt up
Hold the phone in both hands as you'll play, then sharply tilt the top of the phone up and back, like snapping the bells on your back. Three times.
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Live motion
Bell sensitivity–needed to ring
Up / down–can the phone tell them apart
Choose a song
The procession
Bells alternate up and down, so only their timing counts. Ember notes are the Issohadore's calls, off the beat.