Honestly, as long as you are patient and know to get into a fight before making a jump, this section of the game isn't too difficult. If want really wonky 3D platforming I'd point you to the Sega Saturn.
Oh man, Strange Journey. Yeah those dungeons can lead to rage quitting pretty quickly but I honestly found them so refreshing after what feels like ages of lackluster dungeon design in the genre. With that said, it took me ages to beat this game because I would get fed up with them. I feel Sector Grus was the worst though, invisible doorways, teleporting, pitfalls, and random encounters designed to get you prepped for the final sector.