I have found another glitch in the game. So it is quite easy to notice you can start moving during the loading screen blackness. If you do so as soon as you enter a level, and get down the ladder/hole fast enough (usually you see all the items around you fall into place when this happens), whatever boss it is, becomes stuck/stationary at the gate to the end of the level. The minotaur will still walk around sometimes however he will just basically pretend you do not exist. This makes levels basically free. However, you lose the ability to hear where they come from so you spend more time looking.