Nice game, I did have to dust off my 15 year old laptop running linux mint to play it but I did enjoy my time playing. I love the art, it's very consistent and matched the tone. I found it to be very difficult but I did manage to kill the pig in the first area. Not sure if you added sound or not but I couldn't hear anything. Making a game in your own engine must have been quite a challenge and I think that's so damn cool! Excellent work on this jam :D