Cactus has stated that the reason he makes games is because he enjoys making them. It's somewhat mysterious that Hotline Miami would be the game to get him significant attention simply because he tried to sell it.
A small part of my mind steadfastly refuses that the real Cactus doesn't actually know what money is and all of the profits made from his game are being sent through a time-space portal and transformed into beef jerky. This beef jerky exists in a dimension which is full of an infinite number of fat people and it must escape.
In hindsight, this is a fairly good premise for a Cactus game.