Videogamer writes: "Mini-game collections for the Wii aren't necessarily a bad thing, but they are when they're ridiculously overpriced. Ninja Reflex features a staggering six mini-games for the extortionate price of £30 (£20 on DS). At £5 per mini-game you'd expect some pretty amazing Ninja action, with plenty of flipping out Ninja-style. You don't get it.
The game is split into single-player and multiplayer modes. When playing alone the game rewards you with belts as you complete mini-games and unlock harder difficulties. In multiplayer, up to four of you can play any of the six games together, although only three actually support simultaneous play, with the other requiring players to take turns."