Oh wowie that was fun and cool! Pacifist was nice, I could draw what I want so I drew a kitty with a hat, and genocide has like a milion sub-endings it seems, but you can only get one by intended means.
By intended means.
If you pres control-shift-n (or control-shift-p on firefox), that opens incognito mode. If you write "Newgrounds.com" there, and open this game, it won't recognise you as being on the same account, or even the same device, so you can play again. I don't think this is something the devs can fix, ever, but I've found like 4 endings like this, and making so many when each person is only supposed to see 1 or 2 is really some'in.
Oh, yeah, that's the way to play again btw, since everyone in the comments is looking for it, I am the finder it would seem!