First off, The pixel art was nice. I dig that. Your plot of the guy losing his mind to space madness was alright. But alot of it didn't make sense. I get the guy hallucinatng with the phone and the mirror and all that, But the self-destruct thing was too farfetched.
Why would an industrial company have a self-destruct sequence on a spacecraft that costs millions and only has one person on the moon? (I know it's more of a scientific thing, but things like this really bother me and it really takes away from the plot. Also, it's one of those convienient things that people use with writing so they don't have to develop more plot.) All in all, it was alright, The pacing was a tad slow, but I really didn't mind it. Nice work :)