Heya,
I focussed on slaughtering Shocker Zombies because I wanted the bionics. I installed all the bionics I could find. Then I discovered that after I installed an Aero-Evaporator, the next bionic I installed did not have a symbol (an alphabet) next to it. This meant that I could not activate it.
What should I do? Am I fucked when it comes to bionics?