Ocha-ken no Heya (GBA)

'Ocha-ken no Heya' (お茶犬の部屋) is a Japanese pet simulation game released for the Game Boy Advance on December 19th, 2003. Based on a variety of different teas, it originated as a children's toy franchise by (J) SEGA Toys, but has since branched out among Nintendo gaming consoles.

Being one of the first video game titles to be released for the franchise, the game opens to an isometric room that the player can use to adopt and foster "ocha-ken" (tea dogs/puppies), as well as having the option for tea cats (ocha-neko). Similar to a dollhouse setting, the player can place and move objects (e.g. furniture, food and toys) to decorate these rooms, which can either be purchased, unlocked through minigames, or received as a reward as the game progresses. These objects can sometimes prompt a unique interaction between it and the pet as they wander around the room.