I thought this game was well put together. I new what I was supposed to be doing. Once I figured out there were different biomes I could pretty easily figure out were all the mushrooms roughly were. I though highlighting the quest giver was a pretty economical solution to help players not get lost.  One thing I would suggest is looking at the water. I can walk on water and didn't hear any splashing sounds. You have a few ponds around and an ocean it's probably worth looking into.

Looks great visually! Unfortunately, players are going to get very frustrated trying to find objectives with that little direction! So if the swole guy gave us a bit more guidance or if the environment was so designed as to naturally draw us to where these mushrooms would be, that would be a very important improvement, given the focus of this game is essentially investigation. Also consider that people would instinctively assume ALL of the mushrooms would be scattered throughout the entire forest, so not finding them after a decent amount of quick exploration is just intuitively confusing. All in all well done! You certainly nailed the theme in my opinion :) 

If the Main Jock is saying something and I there are suppose to be subtitles, I have no clue what they say. I can't see stuff on top and bottom. In the main menu I have to click blindly off my screen. I have a 21:9 widescreen and it probably messed up several games in this jam for me.

But I would go mushroom picking with these Shrek lookin', Jabba the Hut sounding bodybuilders any time

I can't find all the mushrooms, I need the jujuba!