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.
CAVE GLIDER:
Always one to dive in with both feet, the dashing explorer Roxton A. Colchester III has taken a perilous plunge down to Moltara City. Help him guide his parachute safely through the tunnels to his destination. Keep an eye out for obstacles and enemies that could get tangled in Roxton's parachute, and remember to keep him clear of the tunnel walls. There are also power-ups to help him along the way. Good luck and happy 'chuting!