I've beaten every boss but the spider, but I'm not sure how to get to the spider's room. It looks like I need to crouch, but I can't figure out any way to do that. Do I have to buy upgrades? I've been going pacifist (except for bosses) so far.
Nevermind, I'm missing a slide upgrade I see. I will go find that, then!
Okay, beat it. Fun game!
