I got it! Dead cats are the key, specifically, (rot13) Trg n cnve bs pngf gb qvr ba gur pbairlbe whfg orsber nabgure fyvqrf bagb gur synt. Gura gur yvir png pna jnyx qbja nf gur qrnq pngf zbir gbjneqf gur synt. Jura gur svefg uvgf gur synt, zbir vg qbja naq lbh'yy unir gur beqre jr arrq.
Now I can go play all of DROD again...