I managed, but I'm a glutton for punishment. In the first one you can kind of go guideless as long as you know a few fundamentals: determination is most important as it gives more skill points and easily pays for itself - by endgame you easily have everything capped. Certain combinations of skills also become game breakers, like being able to duplicate items or pumping up exp gains, etc, but the game isn't that hard and if you want to do everything you have to run multiple times anyway. That holds especially true in SO2, apparently.

On that note, SO games use divergent path storylines but rather than being a "choose a faction" or something, it's dependent on party members. In SO1, it's basically three ways things pan out for certain arcs depending on who you recruited, with some members required for others. Luckily there was a flowchart, so blind-ish runs can sorta use that without blatant spoilers. It gets kind of interesting because certain mutually exclusive characters are related in unpredictable ways, so multiple playthroughs kinda reveal more depth... at least as far as a game originally made for SNES can be.

Luckily the game isn't that long so it wasn't much of a chore to do multiple playthroughs, especially with fast forward functions of ppsspp emulator. Doing it on original hardware might have been more of a chore, though.