Hi. At this point, nothing... just survive! I believe this game will not be finished.
This was the result of 10 gamedev classes with my students. They had to follow (copy) everything until they understand Unity and other code stuff before starting their own project so, the game is not finished because it was just to show some examples and implementations. I have all tutorials in my youtube if you want to check them. It is 12 video lessons for art students that start on installing Unity and go until publishing in itch!!!!!
Anyway, some things work: You can combine lithium and plutonium (on the ground) to create an Energy cell that you can consume by clicking with it on the robot. Your energy goes up! Other combinations are also possible to improve other aspects of the robot. but because this was just to show one way of implement some mechanics, it is what it is!
This is a prototype for survival game... my score is 1431 seconds... around 24 minutes, but it's kind of boring with nothing else to do!