Jupiter Tower is the most complicated dungeon in the game. There's a lot of treasure here, but it may not be worth the effort of collecting it. You'll have to Klimb and Descend multiple times to make your way to the top. Not only that, the tower is tough to reach on Jupiter's surface. You'll have to land on the relatively small island landmass.
The top floor is particularly strange. While the maps show each floor in a 17x17 grid, internally they are actually 16x16 (the walls surrounding each side are the same). However, there is a gap in the wall on level 15, and it creates some strange behavior. I've seen walls that aren't there, monsters that can't move or act, and other general weirdness. It's not really a big deal, but you should be aware of it. The Tri-Lithiums on either side of the map are actually the same square, meaning that the wrap does not create a hallway you can simply follow in a loop.