Thank you for the feedback, really appreciate it.
Well, you will get a bit stronger with every kill and for killing the mini boss. So killing a lot of mobs will help killing the final boss.
As for being not able to switch realities, there is a check to see if you would teleport into a mob or other blocking object. Perhaps I should give more feedback as to why you cant switch.
I'll look into the black void port and the crash, after all there was not much time for a lot of testing and balancing.
A lot of the fun stuff (traps, triggers, doors) and such I had to postpone. Sadly also the main menue where you could choose between instant step and transitions did not make it into this version.