Really nice presentation! The idea of a dog using it's owner to beat the crap out of aliens is hilarious, especially because of the dialogue in-game. I also really enjoy the multiple endings as it really increases replayability!
I really liked the visuals and animation in particular, it sells the 80s low budget alien movie vibe and lowers tension, even while being chased by an alien.
I did wish there was a need to use both of the items though, I ended up winning with the good ending only by going around to each human and using the boombox. I hope, if you continue to develop the idea, that you might add an alien that requires the knife to find, right now, I feel the night passed a little too slowly because of the simple mechanic.
Hope you develop the idea to add that little "oomph" to the hunting. Otherwise, I really liked this one! Congrats!