Wait... you reach level 6 ? that's kinda crazy, I thought everyone will give up at level 3 xd, that's awesome, the level 6 is not really good, I had only 30 min for making it.
Level 3 was quite hard indeed xD Please, please release a post jam version i'd love to see what you could make with more time (and reduce the change of FoV) :D
Oh yeah, i use a really complexe function based on the velocity for he FOV, but I didn't thought the player could get so much velocity xD But I plan a full released! But I will take a lof of time, I want to make a real game, and maybe publish it on steam