Not sure what the change was, unless they finally gave it an ending. in newgrounds version, "walkthrough" was something like
grab fuse, push button, climb ladder, get second fuse, fix equipment with fuses, walk back to bridge, get watering can, fill with water, water Ivy for sex and key, use key to get pillow, give pillow to catgirl for sex and key, get harleys hammer for sex... all content done, no real finish.
for someone who thought an office chair was uncomfortable, cat girl's positions look painful...