The NP ratio tells you how many Neopoints you'll earn for every point you score while playing a game.
For example, if the NP ratio is 100 NP for every 150 game points scored, to earn the maximum 1,000 NP reward for playing, you'd have to score 1,500 points during the game.
On the other hand, if a game's NP ratio is 25 NP for every point scored, you'd only have to earn 40 points in the game to get the full 1,000 NP for playing.
Dice of Destiny:
Torchlight dances over the rough stone walls, and in the gloom, something gleams, catching the intrepid Wocky's eye. Though fear courses through his veins, he can't tear his gaze from the glittering numbered tiles, nor can he keep his paw from straying toward the dice beneath them. What will be the outcome of his fateful roll? Will the door open to free him... or will he be trapped forever?