Pocket Monsters Advance Generation - Minna De Pico - Pokemon Waiwai Battle! ROM Download can be obtained free for Sega Pico on EmuGames.net only. Play emulator game in English for the USA region. Pocket Monsters Advance Generation Minna De Pico Pokemon Waiwai Battle! is a Sega Pico ROM that you can download to your computer or play online within your browser. You can also download roms such as Pocket Bomberman and Conker's Pocket Tales that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.