Thanks for the review! Poor time management meant that I was making most of the levels Friday afternoon, and many of them ended up being harder than intended due to lack of play testing.  Another questionable design decision I made is that when monsters are turning, their Field Of View is actually smoothing moving from one side to the other,  and when they're walking it is centered on the direction they are actually moving. But since I only had time to draw 4 directions that they are facing, sometimes they look like they're looking in a cardinal direction when actually, they are looking at  a 45 degree angle.  Another thing which can be confusing is that the raycasting for detecting the player goes from the center of their hitbox to the center of the players hitbox (and the edges as well, if you are moving). The hitboxes are located near the players feet (so your head can overlap the walls  above you). This means that they can see you when there is a line from their feet to your feet, regardless if there is a line from their head to your head. I think this is one of those cases where it's actually necessary to cheat in the player's favor to make the game seem fair.