>>53667076It has a ton of content and is pretty much complete besides a postgame quest and the dex being impossible to complete because some pokemon like Snorlax are programmed in but can't actually be encountered. Seriously you'd think the new devs would fix that first.
That said, the game does have problems. The game's dungeons can be very annoying to go through. Mound Cave sucks, you have to keep running around in the dark to turn on the lights and hunt the Palette Rangers, quickly gets annoying. The Magikarp puzzle is fucking awful, game just grinds to a halt for this shit. There's too many moments like that in Prism, where the game just stops being fun for a shitty gimmick.
Also, this is a weird complaint, but the game unironically has too much content. Spoiler, there are 20 gym battles, and you really start to "feel it" around gym 18, clearing another monotype boss with 5-6 pokemon just gets rather exhausting. But I still love it, I appreciate the effort put into Prism. The dev clearly loves Pokemon, especially gen 2, and together with its prequel Pokemon Brown, he created a great Pokemon experience.