Could you be thinking of Digimon World 3? In that game, there are "Mysterious Figurines" which are used to unlock special areas and events. They are obtained through various methods like:
* Finding them in hidden places: Some are hidden throughout the world map and require exploration to find.
* Winning them as prizes: You can win them in the "Digimon Coliseum" after defeating certain opponents.
* Buying them from shops: Some shops, like the "Treasure Shop" in the Digimon Village, might sell them.
* Trading with other players: If you're playing online, you can trade figurines with other players.
If you're playing Digimon World 4 and are looking for something specific, please let me know more details, such as the purpose of the figurine you're looking for. I can help you find the correct information.