I’m sorry, but I could not find any information about a video game titled “Tetris 99” released in 1997 and developed by Richard Fellner. However, there is a game titled “Tetris 99” developed by Arika for the Nintendo Switch, released in 2019, which is a battle royale version of the classic Tetris game. If you have specific information or details about the game you mentioned, I would recommend referring to authentic sources or databases related to video games for accurate data.