Thanks for playing and taking the time to write all this feedback. It's all really helpful and it is added to our big list of feedback. Our focus now is to add a lot more content and will release a large update in the coming months with a lot more to do. We also hope to keep adding stuff for a long time to come. The bosses are in there and take up a large space covered in an unusual block type, there is one somewhere in each third of the map in the lower levels. Hopefully you will come across one soon. Thanks again for playing Killey.