Thrillville: Off the Rails Cheats Make up business plan, B. Casanova (10) - Become sweethearts with 10 park guests. Challenge Champ (10) - Win 10 challenges with park guests on any minigames. Chatter Box (10) - Fill your MyCrowd list. Coaster Boaster (10) - Design a rollercoaster. Coaster Dropper (10) - Build a coaster with a drop height of over 300 ft. Bjsiness Speedster (10) - Build a coaster with a top speed over 80 mph.