I liked Oryx's sprites a few years back when they were new. Now that they're all over the place like a skeezy back-alley ho, I'm tired of them. I mean, even Mario's sprite changed every game. I think it's nice that someone put packs out there for people to use if they suck at art (Cthulhu knows I do) but if you put a little effort into contacting sprite artists, a lot of them are willing to make this stuff. Many times for free. In fact most of the sprite work for my RPGMaker game has been done by three different artists. I don't think a non-artist programmer should wrestle with the art side of things, but at this point the Oryx pack is becoming unoriginal, by definition, as everyone is using them. And no, I'm not saying this game is unoriginal because of the art assets used, just that the Oryx packs themselves are by default at this point. I would like to say this is an awesome game though. Controls work well, the pacing is great. I'd like to second that suggestion of key stacking as I too have been inundated with keys in my inventory. All in all this game real feels polished and incredibly fun. Keep up the good work!