To be honest, I didn't want to have defeat scenes whatsoever, hence the lack of focus on them. I'm not sure how it'd be conveyed that there aren't multiple scenes per enemy or anything - though that assumes you're playing with meta-knowledge of Thirstchasm or games that came after it...
Edit: The crash you're experiencing is only in v0.1.0. I pushed 0.1.1 yesterday specifically to address it and a few others.