I think that the most difficult thing but at the same time the most entertaining thing is when you are limited by the mechanics, I don't know how your game is that you are preparing but if you have a few mechanics you can exploit them a lot and go dandk them little by little, for example I have I found a problem in my game that I hadn't thought about, and it's just the space, since the camera doesn't move I have very little space available and the bridges and doors and walls take up more than they seem, so they are things that you go seeing, being a jam it doesn't matter but if it's for a bigger game, these things have to be taken into account. Thank you and good luck!