The object is for the cat to reach the watermelon. Use the arrow keys to move the cat to the watermelon. Start the game with the green flag AND press the S key to start the lines spinning. It is a simple maze game that can be built on for challenge levels.
I added to Day 2 Keystroke Challenge. The lines spin and the boxes glide when the S key is pressed. I like just building on an idea a little at a time. I added the box obstacles and the cat's tail wags now. The watermelon disappears and returns so the cat can keep eating and the score variable keeps track.