Boulder Dash(R) is a registered trademark of BBG Entertainment GmbH. Boulder Dash(R)-30 Anniversary, the names and likenesses of Rockford, Crystal and Goldford are trademarks of BBG Entertainment GmbH. Boulder Dash(R)-30 Anniversary Copyright © 1984-2017 BBG Entertainment GmbH. All rights reserved. The original Boulder Dash(R) was created by Peter Liepa with Chris Gray.