Hey, I am a programmer so I don't know anything about art. So i made a game with only simple shapes like circles and triangles. Can I have a chance to win the jam without actual art?

I guess lack of game designing will damage your rating, so... 

There's plenty of games that look great with just basic shapes. I'm not that great in art either but I can make it work with some post processing and stuff. There's still a chance you can get a high rating in the presentation category so don't sweat it, do your best!