When you buy and go to Sid's Haunted House in Toy Box mode, talk to Rex, then get the lightning rod. You will now be inside the house. When you obtain all three keys, the door will open and a song will play. This is the same song that the busts from the Disney Haunted Mansion ride sing in the graveyard.
ACHIEVEMENT - HOW TO UNLOCK Train Catcher (10 points) - Finished "Loco Motives". Off the Hook (10 points) - Finished "Hold the Phone". Defeat Zurg (10 points) - Finished "To Infinity and Beyond". Carnival Conqueror (10 points) - Finished "Fair Play". Rocket Launcher (10 points) - Finished "Witch Way Out". Making a break for it (10 points) - Finished "Hide-N-Sneak". Mashing the Masher (10 points) - Finished "Trash Thrash". Muffin Massacre (20 points) - Finished "Muffin to Fear". The Collector (120 points) - Gather every collectible in the game. Mapnipulator (10 points) - Explored all the objects on the map. Sneaky Sneaky (25 points) - Finished the Prison Break without ever tripping an alarm. Space Ranger Elite (25 points) - Reach Zurg’s base without losing all your health. True Carny (25 points) - Achieve gold on all carnival games. No Toy Left Behind (25 points) - Rescue all the orphans on the Train. We can rebuild him (25 points) - Collect all of Zurg's Parts. Memories (25 points) - Collect all of Andy's Memorabilia. Townspeople Hunter (25 points) - Find all the hidden townspeople. No Claw Required (25 points) - Find all the hidden aliens. Really holding all the cards (30 points) - Find all the Special Cards. Holding all the Cards (50 points) - Find all the Regular Cards. Welcome to Town (10 points) - Finish the Woody's Roundup tutorials. Gold Super Star (100 points) - Collect all the Gold Stars. First Sale (5 points) - Buy a toy from the Toy Store. Toy Collector (50 points) - Purchase every item in the Toy Store. Pict-O-Amateur (25 points) - Complete 1 disc of Pict-O-Matic missions. Pict-O-Collector (25 points) - Find all 6 discs of Pict-O-Matic missions. Pict-O-Master (50 points) - Complete all Pict-O-Matic missions. Spooky Town (10 points) - Purchase Sid's Haunted House. Cuddly Town (10 points) - Purchase Lotso's Enchanted Glen. To Infinity… (10 points) - Purchase Zurg's Spaceport. Airborn Ranger (10 points) - Hit 15 Paratrooper targets. First Bronze (5 points) - Earn a bronze medal in a vehicle challenge. First Silver (10 points) - Earn a silver medal in a vehicle challenge. First Gold (25 points) - Earn a gold medal in a vehicle challenge. Photojournalist (15 points) - Complete all Toy Camera missions. No Swimming (25 points) - Blow up the dam and expand your town. Rescue Space Ranger (40 points) - Save Mayor Hamm from the bandits. Give Me My Gold Back (75 points) - Defeat Mayor Hamm in the Woody's Roundup boss battle.
Play the Bonnie's House level on the spaceship. When you must get the batteries in their slots, look at the sides of them to see a BnL logo. This is a reference to WALL-E, where Buy n Large is featured in the movie many times.