The Phineas and Ferb Ultimate Rollercoaster Playset is a playset with rollercoaster pieces that can be re-arranged. It comes with two cars, Phineas and Ferb, and a Halloween-themed car. The Phineas and Ferb car is based on the episode "Rollercoaster", the Halloween car based on the episode "One Good Scare Ought to Do It!".