To easily gain points, frist complete Stage 1. Choose your upgrades, continue, then quit the game at the start of Stage 2. Press Start, load your saved data, and select "New Game" at any difficulty setting. When the new game starts you will have the upgrades previously available at the start of Stage 2 in your previous session. Repeat this process as many times as desired. Note: This do this same process between any 2 stages, so if you get bored of playing through one stage, you don't have to keep playin that stage to do this. An overall "S" rank under the Easy difficulty setting is worth 180 points; under the Normal difficulty worth 250 points; and under the Hard difficulty setting woth 350 points.