While there is certainly some fun to be had in the challenge of solving each level, I feel like there's a disconnect between the game rewarding you for not killing humans and the AI's dialogue of wanting to use their blood as paint.
Maybe if there were some dialogue about saving them as exotic pets?
Glad-OS Outbreak simulator 5/5
HAL9000 Simulator 2016.
This game is really awesome, it's like a GLaDOS Simulator. Five stars! :D