Because I can and I want.
Why, you ask? In here, you will be our test subject, recreating your puny life in a compressed, scientifically relevant environment, where you will run an endless rat race in order to achieve personal satisfaction in the form of sex ( or "getting pussy" as you call it ) and money ( useless, trivial stores of "value" )... Features To sum it up, you will run in 4 different environments, dodging obstacles and dangers.