Felt
Ball
Place this device on a flat surface.
A steel ball rests on the felt.
Tilt to roll.
Begin
Hold
Still
Sampling your device's resting angle…
—
No
Motion
Motion sensor access is required.
Please allow access and reload.
Retry
Choose
Mode
Roll free, or run the course.
Keep Playing
Enter Stages
Stage 1
Guide the ball through the funnel.
Reach the pocket.
Roll
Stage
Clear
Your time
0.0s
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Time
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S1
▶
Sensor
raw X
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raw Y
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cal X
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cal Y
—
net gX
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net gY
—
vel X
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vel Y
—
state
—
input
—
mode
—
Hz
≡