Lovely idea and terrific map.  Overall a good design and really fun idea.

I like the irony of the situation and the reward. Funny effect for the dog's saliva too. I just had some problem realizing the text was disposed in pamphlet form and that it started on the right section (... or not?), but it was an interesting idea to design it like that. I think that indications about the dog and the xeno creature should be clearer when they're first introduced, preferably being present within the first words of their sections. I'd write it like that:

"Subject Rho
Subject Rho is a dog descended from a line of (...)"

"Xeno Delta is a huge gray beetle-like creature initially found in (...)"

Good idea by listing character occupations and random encounters. Great map design and information about the rooms.

I like it! The mechanics for the dog are great and it seems like a easy to run, fun little adventure. Nice work!