Changed my mind
Was thinking about my game idea as I went to sleep and again in the shower this morning and realized it's no good. It'd be too much work to make a good game in a couple days where the puzzles hinge on making specific object interactions. Luckily I had another idea in the shower of a game that's kind of Tomodatchi-like. I think I can more easily make a fun game in the remaining time that deals with balancing parameters than what I had started last night. I think I'm going to switch from Unity to Ren'Py because that seems like a much better system for the style of game I have in mind.