I really like this game, the concept and the execution is great. Being a Jam Game this is completely awesome and it feels great to play. If you want to improve this game ahead and make it a solid mechanics game then there are a few specifics you need to consider to make it blend well and feel super fun,
1. The lighting of the factory could be better. Currently, it's looking really odd.
2. The gameplay is not matching with the menu. Your menu looks great and it gives a different vibe to the game but your gameplay is completely the opposite. Especially the textures and everything with the lighting kills the mood.
3. The mechanics seem to be good as of now, but if you are aiming for the bigger picture then definitely you need to polish that up too.
4. You can have a good storyline and a system that can be explained to the user so that they can relate and enjoy it for a longer period of time.
5. The sound effects that are already there in the game are good but still you can I'm[rov on that too.