I'm having a lot of fun with this, there's a really cool ambience to it. I have run into a couple of potential game-breakers though:
My attempt to explore the lab brings up a 'Dawn breaksFunctional Flashlight' error. Though the bar fills, no time passes, and no stuff is revealed. Which means I can't get the cube piece here.
(EDIT: I found a workaround - it turns out it can't be searched while there's a flashlight on the table. Not sure why, but I just put it back in my bag and I can explore it now)
Also, the park has a tendency to fill up with frogs, which deal over 100 damage as soon as you go in.
