User blog comment:Emberiot/SAS Zombie Assault Memes/@comment-25739940-20150124014710/@comment-25739940-20150124045855

Emberiot: I used Paint.net. From what I've heard it's nowhere near Photoshop power, but it's still more advanced than basic Paint.

Appy: Shadowcat from X-Men :o Gender-swapped, that is... Hmmm... Creepy..