If you could change one thing in each of the games, what would it be? You can pick anything at all, but only one thing for each game.
PSI - I would have made Lassic's Shadow more interesting. It was just a palette swap of Dr. Mad. I think using one of the wizards that appear in PSII and PSIV and spinning a little backstory would have made it more than just some guy in my way.
PSII - Some more reaction from townspeople to the explosion of Palma. It's a major event, but it is barely touched on.
PSIII - More variety in the third generation. They could have done something different with the last dome, instead of just going to the same dungeon each time.
PSIV - I would have added some kind of historical references to Odin and the PSII crew. They seemed to be tossed to side, in a sense. I mean, there are statues of Alis and Myau, possibly Myau himself, Lutz, Lassic and two homages to PSIII (Wren and the crashed ship). The only real reference to a PSII main character is Rika being based on Nei/Neifirst. It would have been nice to see the wreck of the Noah, a mention of Rolf and his other companions, or something like that.