Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness/Chapter 4: Gatekeepers
The next day you and your partner awake and have Loudred ask you to assist in Sentry Duty, where you take Digglet's place in identifying the footprints of Pokémon who enter the Guild. In this relatively easy touch screen mini-game you have to identify six different Pokémon with an allowance of two incorrect answers. Once you finish, Chatot will award you with Poke and items based on your performance. If you get every Pokémon correct Chatot will award you with about $500 and about five items so try to get a perfect score. (Who knew Chatot would tip so nicely?) If you do absolutely perfect (no mistakes and no second guesses), you will get items that will help you a lot, they include a Joy Seed and Ginseng.