I was never able to beat this game when I was a kid, but I revisited and beat the game about 3 years ago. Despite my great effort to beat the game, the ending really sucked. Below is a video of the ending.
When I beat it, I used the torch. I was never able to find the pitchfork as is used in the video. There are six characters in the game; three girls and three boys. The main point of the game is to, of course, stay alive but also protect the campers from Jason. You have to defeat Jason three times to win the game, and with each defeat, Jason becomes faster and stronger. But like Punch Out for the NES, Jason's moves are predictable. Just learn the pattern and you'll beat the game.