Pretty simple. Scoring: Eat the yellow "pellets" to increase your length. Avoid red pellets. They will decrease your score. Dying: If your score decreases to 0, you DIE (dun dun dunnn!) Winning: Reach a length of 20 to win the the game. Move the grey circle around to move. But if a pellets goes off the screen, it will disappear. Reasons? Debugging. I tried to make it go a bit further before it disappears but turns out sensing doesn't work between sprites offscreen. Press space to hide/show variables.
This is a remake of a game I really wanted to play but I couldn't find. I didn't know what it's called. I didn't even bother searching. So. Here it is. Found it.