Sure, you can download Tetris just about anywhere these days, but you couldn't download Game Boy Tetris. Today, the Game Boy's killer app arrives on the 3DS eShop, nostalgic music and all. It's accompanied by a much less familiar game: WayForward's brand new Mighty Switch Force. So, it's kind of an excellent day for the eShop!

Meanwhile, amateur chiptuners can try out a new music program on DSiWare designed for arranging retro-style music.