Wonder Stadium '99 [M].ws ROM Download can be obtained free for WonderSwan on EmuGames.net only. Play emulator game in English for the USA region. Wonder Stadium '99 .ws is a WonderSwan ROM that you can download to your computer or play online within your browser. You can also download roms such as Harvest Moon A Wonderful Life Special Edition and PokePark 2 Wonders Beyond that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.