Hi Kilansky, the game does use assets form the unity store including the fantastic Horror FPS kit v1.5, which is where the first person controller has come from, I've detailed this in an easier post.
This is my first Game Jam, as a solo developer I'm much more an artist then a programmer, and did read Marks rules for the Jam to see if it was ok to use assets you own or have on hand. The games core mechanic which is the groundhog day 60 sec sleep mechanic is coded as part of the Jam, as well as the the assets and visual that make the game concept come to life, such as the opening and closing eyes and time of day sky. What I didn't have time to code I utilised unity's timeline animation - for example the intro titles are all keyframed and animated within unity. Some assets like the typeface was designed by myself a few weeks ago and I think really fit my vision for this game.