MMOGames.com Previews SEGA's Spiral Knights:
... You remember multiplayer Zelda, right? They called it Four Swords or something. You played it on the GameCube, but used your GameBoy Advance as a controller. Ah, those were the days; working together with 3 friends to solve puzzles, slay monsters and cut grass. Well, if Spiral Knights was inspired by anything, this was it. It's not the same, but it's very, very similar.