Matchbox Power Scouts Bashing Boulder Mine Adventure System Tough and rugged adventure play sets put the Power Scouts 4x4s to the test. Kids can build multiple course combinations or use this set to connect to the world of the Power Scouts 4X4s. You'll be amazed at how Power Scouts 4X4s power through and just keep going. Each set has flexible track to create lots of challenging combinations. Connect multiple the sets together to create a super Power Scouts world.