Its big attraction is that it works in multiplayer with just the one cartridge. In fact, it’s exclusively a single-card game, and it doesn’t strip down the experience like most other download games do. You get the full thing on three empty handhelds, with the host DS sending data to the others between rounds. It means there’s a loading pause before every minigame, but that’s entirely excusable when you consider that the alternative would be to limit four-player games to groups who had spent considerable cash on four cartridges. Single-player meanwhile, features an incongruous selection of puzzle games that have far too much to do with matching colors.