The black sheep of the Mario and Luigi series, and arguably the most darkest Mario game in the franchise. AlphaDream really stepped up their game here with the overall ambition for the sequel to superstar saga. It's a shame that this one was skipped when it came to getting an HD remake like Superstar and Inside Story did because I think this is one that deserves it the most. Not to say that there's huge flaws with the game but imagining what a Partners in Time Remake would look like is just nothing short of a dream. Considering AlphaDreams bankruptcy who knows if we'll ever get to see this game and the series for that matter in the future.
I will admit though it is a missed opportunity this game never really delved into the future aspect and instead all we got were the Past and Present versions of each area. I think the game would maybe double in length if that were the case but I think of how Sonic CD handled its time travel feature and how much detail was put in the future and past given the criteria you had to fulfil.
Idk i'm just spit balling here, great game still. Definitely worth your time, and its really short too.