YES! The Super Crate Box was one of the inspirations for the game! I have mentioned this, but I'm gonna mention it again. One hour before the jam's end, the statistics of the weapons got corrupted/deleted because I was using a deprecated system (ScriptableObjects if familiar with Unity). I had to re-implement them and had to ship the game without lots of play-testing! I hope you take this into consideration.
Absolutely. Jam games that don't need tweaking are extremely rare. As a matter of fact, I'm familiar with Unity's Scriptable Objects (Teeth Simulator uses a bunch of those). It happened to me to lose data when the scriptable object's class name was different from its script's file name (maybe this'll help).