Abstract: A method of improving accuracy of a database of amusement device locations is described. A plurality of amusement devices are deployed at a plurality of locations. The database of amusement device locations is populated based on the deploying. A server receives over a network, from a portable device, a check-in request. The check-in request is associated with one of the amusement devices, and includes geographic location information associated with the portable device at the time the check-in request is made. The server compares the geographic location information received from the portable device with the location of the amusement device stored in the database, and updates the database based on the comparing.