'Puyo Puyo Tetris'
Japanese and Russian game design came together in this arcade puzzle combo, Japan's color-matching game Puyo Puyo and Russia's block-placing classic Tetris placed side by side to compete against each other. Both are the kind of games that haunt the inside of your eyelids after playing them for long enough. They burn themselves into your retinas and also your thoughts, but they require such different styles of play that switching between them on the fly is brain-baffling. You have to get used to it in Puyo Puyo Tetris though, as you're not just trying to earn a high score in one game while your opponent plays the other. You're also sending junk across the screen to muddle their game every time you clear a line or pull off a chain combo. Expand on that with four players and modes like Swap, which force you to jump between one game and the other, and it gets even more face-melting. (That's without even looking into the story mode and its plot about the Keeper of Dimensions and a journey to the edge of space-time. Really.)