Monkey

Overview
As a monkey, your duties are... Well. You don't have any. Literally, none. The upside to this is that you can basically do whatever the hell you want(EXCEPT GRIEF). But there are many, many downsides.

Upsides
As a monkey, you're free to do whatever the hell you please. Which is certainly fun. You also have the ability to crawl through vents to reach any other part of the station with a vent. Scrambling around as a monkey, and harassing the crew is a very fun thing to do. Otherwise, there's no real upside to being a monkey.

Downsides
On the otherhand, there are many, many downsides of being a monkey. As a monkey, you essentially lose your rights of being a human player. The AI can do whatever it sees fit with you, whether it be make you touched a shocked door, and drain teh air from your room. Same with cyborgs. Another downside is your inability to wear clothing. You CAN wear backpacks, and pick things up, but the disadvantage here is you are unable to crawl through vents with these things equipped.