My "challenge" was to finish something with MonoGame for the first time. My prior experience was mostly Unity. I really enjoyed the different way of making this game. I prefer working in code and not in an editor like Unity.
The real chalenge was the second week of the jam where i was exhausted because I worked so much in the first week. So progress slowed down and I did not revist some of the bigger problems of my game (in my rogue like, the world is not really interessting, i should have spawned more interessting things, better enemy placement, etc.). But in the end im happy