I was aware of all of these when making the game. I couldn't find anything higher than 16x16 for the tile map, and I was really bummed out about that. Making my own would have taken me the whole duration of the jam as my art skills are pretty bad. I am still very new to Unity and game dev as a whole. I barely know anything D:
I also know about holding to jump longer, and I could have implemented it, but time was short. It would have been awesome sauce to have in.
Thank you for playing my game and leaving great feedback for me. Next time I do a game jam like this, I will remember your feedback.