First off, let me just say this is one of the best vore games I've ever played. While I was originally waiting for it to come to steam, I finally gave in and bought it when you said it wouldn't happen. I specifically love the choice of stomach noises, easily some of the best I've heard in a game, especially since they're not just the same ones everyone else uses.
With that out of the way, can you please increase the chance of the easter egg happening? I'm genuinely starting to wonder if it even exists. I have beaten Nightmare Tulpy and Nightmare Dual Predator multiple times, and I have restarted even more times, and it has yet to appear. I've done everything else in the game and really want to experience it, but there's only so much one can restart the same mode over and over before they get bored, even if this is a really good game.
Edit: Well, I finally got it after turning on student preds lol. I almost beat it on my second attempt, but I'll have to try more later. Can't wait to see what else you have in store for this game!