A tan furred coyote like man is leaning up against the wall dividing the park from the rest of the city, he eyes you curiously as you approach the park, one of his ears flicking in amusement as a small smile plays across his muzzle.
Diego's appearance can change depending on how the player interacts with him.
Diego can be found in the Park. After a brief introduction, he introduces the player to the concept of tricking. Specifically, the player makes an intelligence check to attempt to trick Diego. If successful, Diego will go play some tricks on the military, delaying the rescue: a result of 13-17 on the check grants an extra 18 hours, a result of 18+ grants 2 days and 6 hours. Finding the book of riddles in the Central Library quest grants a permanent +2 bonus on trick attempts. Failure results in the loss of ten points of sanity. The player may attempt to trick Diego once per day.
After tricking Diego four times, the Prank Aftermath event is made available to showcase some of the Coyote's mischief. It can be found randomly during Outside Exploration.
Completing five tricks gives the player the option to give him Dog Milk. Upon drinking it, Diego will turn into a Hermaphrodite. A second milk will turn him fully female. As of a recent update it is possible to trick Diego into drinking a bottle of Orc Cum which will open up sex scenes for males. Results in (Coyote) infection but will gender shift you towards male. If you give Diego another bottle of Orc Cum he will gain the ability to be impregnated anally. Which also includes changes to his ending.