Castleween

Alicia and Greg set off with their friends one Halloween night to look for a house in the forest where they could stock up on goodies. Upon reaching the house, Greg and Alicia's friends are turned into stone by a bogeyman. To save their friends, the two heroes must enter the world of the dead. In order to find their friends and set them free, they need to make it through cemeteries, haunted houses and sinister laboratories.

Only one person at a time is allowed to enter the world of the dead, so Alicia and Greg must take turns to make their way through the danger that awaits them. Friends like the Goblin and Jack O'Lantern will teach them magic tricks that will help them to overcome obstacles along the way. They must find the Mad Scientist's laboratory to get their friends home safe and sound.

Wanadoo Edition announced the game in December 2001 under the name of Halloween, with Kalisto Entertainment handling development of the project. The PlayStation 2 version was planned for a December 2002 release, while the GameCube and Game Boy Advance versions would be released in 2003. Kalisto previously entered into a publishing deal with Wanadoo earlier in the year.

During the game's development, Kalisto Entertainment filed for bankruptcy. This led to the project being put on limbo, which would lead to Wanadoo Edition hiring most of the development team to continue the project in-house, and as such, Kalisto is not credited in the final product.

The Game Boy Advance and GameCube versions received "mixed" reviews according to the review aggregation website Metacritic. In Japan, where the GBA version was ported and published by MTO on April 24, 2003, as Mahō no Pumpkin: Anne to Greg no Daibōken (魔法のパンプキン 〜アンとグレッグの大冒険〜, Mahō no Pankin 〜An to Gureggu no Daibōken〜; lit. "The Magic Pumpkin: Anne and Greg's Great Adventure"), followed by the GameCube and PlayStation 2 ports on June 19, 2003, Famitsu gave the latter two console versions a score of 20 out of 40 each. Nintendo Power gave the GBA version an average review, over two months before it was released Stateside.