I loved the change between the hectic surgery room and chilling atmosphere in the bar!
The mechanic of changing tools by buttons took me a while to get used to, but then felt as a master chief, cutting open the war-torn grey mantis, sweeping the bacteria, and placing the organs inside.
(the room felt a bit empty without music, thanks for explaining it is a bug!)
1) To make it more exciting or to add anything more, have a look at other games in this Jam, "spam-clicks" to power a generator is a fitting mechanic I think for this style of gameplay.
2) If you are aiming to build more, I would suggest a small mini game in the bar might be nice. You have all these characters and the different leisure options, maybe a sort of "increasing how much an NPC likes you by doing activities with them". Since you already have such a cool dialogue system, you can show it there.
(how did you do the dialogue system by the way? :D)
if you'll excuse me, I'll now go play cards with Prof. Pixel.