Before I exported the game I was changing the amount of money you gain per kill and the cost of things to try and balance things out, but instead I messed up and instead you had to wait forever to get enough money for another robot, and by that time the first robot already killed everyone. In the next update of the game I will fix this.
You are correct in that I spent a lot of time working on this game, I literally stayed up until 12 to 1 am just to work on the game (on the last day 2 am), but where I spend the most of my effort were the props and rooms since it was my first time I actually spent a lot of time in blender to make the map and characters.
I was originally thinking for the robots to have separate body parts (and to have variants for the type of robot), but I ended up only having one model with a rig since all the trouble I went trough doing the original method and making it an active ragdoll failed, but I could add something like that in the future.