For ease, follow Bulbanych's advice in the post above and download Krongorka's build. This issue has been around for literal years. I'd recommend searching the thread like anyone else does, but by now it's probably full of more posts of people asking this question than it is full of answers to this question.How do I get past after defeating the first boss the game freezes any way how to fix this?
For ease, please download Krongorka's build. It solves both the bug of getting stuck and gives you an awesome English translation.