Sacred Haven of Debauchery

I'm even curious how you managed to complete the ice level, the snake level, and especially the underwater level and the tower at the end.

Yes, it was all difficult! And I didn't even reach the tower at the end, although I was already close! I don't remember the ice level very well now. I played it around 1997. With the snakes, you have to experiment and memorize where they come from and where to jump; and, as far as I remember, the sounds of their movement help. There's a lot of difficult stuff there. For me, the most difficult part was the vehicles that you had to use to navigate obstacles, jump over barriers, and cross gaps between sections of the surface. It required lightning-fast reflexes! And you also needed to calculate everything!