Tetris DX is more than just a colour upgrade of the original GameBoy Tetris. There is now a few extra modes, and an improved profiles/scoreboard feature. Also, the ability to play multiplayer against a cpu has been added, which means you don't need a link cable to even think about touching VS gameplay anymore. Of course the game still does look a good bit better with colour added in. Overall it's still a pretty simple little Tetris game, but definitely an upgrade over the extremely bare-bones original GameBoy Title. Unfortunately however, despite it being an objectively better game in almost every way, they just had to remove the original Tetris theme, so I still prefer the original.