Game Overview
Casper is an adventure game where you explore the halls and rooms of Whipstaff Manor as Casper the Friendly Ghost. You can move, pick up objects, solve puzzles, reassemble torn paintings, and morph into various shapes. Unlike many other games, Casper cannot die and there is no time limit. However, if you lose all your Morph Points, you will be sent back to the beginning of the game at the mansion's front hall.
Objectives and Story
Your first goal is to search the manor for tokens of friendship to give to the Harveys. You must choose the right gifts and good deeds to gain their trust, as your uncles and Carrigan are standing in your way. You will likely need Kat's help for the next stage of the game.
Morphing Mechanics
To select and use a morph, press Y to enter your inventory. Use the directional buttons to move the magnifying glass to the desired morph and press C to use it. You may also cycle through inventory items using the X and Z buttons.
Each morph costs a certain amount of Morph Points to maintain. You can build these points up by eating food items. When Casper bumps into food, it is automatically eaten and the points are added to your total.
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Glass of milk: +20 Morph Points
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Carrot: +25 Morph Points
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Tuna sandwich: +5 Morph Points
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Broccoli: +50 Morph Points
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Banana: +10 Morph Points
Interacting with the Environment
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Doors: Locked doors can be opened with iron keys.
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Chests: Fastened chests can be unlocked with brass keys.
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Furniture: Stand Casper in front of items like barrels and chairs, then press B to move them. Note that some furniture cannot be moved or requires greater strength.
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Fireplaces: You must put out the fire before entering. Chimneys may lead to secret areas.
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Sinks: Select the bucket from your inventory and press C to fill it with water.
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Switches: There are light switches, weight switches, and levers. Multiple switches may require specific on/off patterns to trigger secret passages or hidden compartments.
Tip: Adjusting Altitude
If you have trouble reaching objects to activate them, use the altitude buttons on the front of your controller to adjust your angle.
Walkthrough Snippet: Secret Rooms and Keys
Press B to pull on the spear and release the door above you. Go up to the secret room to pick up another key and a sandwich.
Return to the switch that opened the wall and head right to the door you previously couldn't open. You should have the iron key now; press B to pass through. Inside, there is a chest. Position Casper in front of it and press B to open it.
Jump back quickly, as Fatso may be lurking inside. If you dodge his reach fast enough, he will leave, allowing you to pick up the puzzle piece.
Walkthrough Snippet: The Kitchen and Main Hall
Return to the fireplace and go through the far left door to enter the Kitchen, which is Fatso's lair. Do not stay long, as you cannot defeat him at this stage of the game.
Return to the Main Hall and head through the archway to the left of the empty picture frame. Continue through the next door to gather two more keys.
On the left wall, find an in/out button. Adjust your altitude and press B to activate it. Do the same for a second button on the right wall.
Return to the Main Hall and go through the archway to the right of the picture frame. Open the chest there using your brass key by pressing B. Be ready to jump back, as Fatso may appear again.
You will find an iron weight, a lever, and potentially another chest. Press B to pull the lever, opening a door to the right. Go through, fish out a brass key, and open the chest. Pick up the puzzle piece and any remaining keys or sandwiches before returning to the Main Hall.
Final Steps
The final place to check is left from the Main Hall, near the fireplace. Go through the fireplace to find the fourth and final puzzle piece.