Don't use "-tris" in the name. That's something they've gone after a lot in the past. Shame you already bought the domain... If the game name doesn't sound too

Don't use "-tris" in the name. That's something they've gone after a lot in the past. Shame you already bought the domain... If the game name doesn't sound too close to Tetris and doesn't contain the music (really, trademarked a folk song? gross), this game will be fine and legal, whether your remake or the original.