Click Phat Gus to start. There are more than 3 endings, look around in the ending screens to find certain codes, they may be used in the same dialogue box. Oh yeah, to use certain codes, use them in the questions that Phat Gus asks you.
Thank you Mark Rober for the name Fat Gus. Or (Phat Gus) This is probably the most time I've spent on a project. I'm probably never going to update this (unless it gets 5 hearts. But that's never going to happen.)