Code: In the ball, add a new tag with whatever name you want (make sure it's not existing) In the ball's rules, add a new rule: When this is created Remove tag #newtagname On a separate rule: When this is slung Add tag: #newtagname (same tag in the remove) In the portal, add a new rule: When this collides with the tag #newtagname Repeat with time of your choice (min reccom. 0.4sec) Vibrate the device with style of your choice All done! If code doesn't work lmk in the comments