I meant to post here earlier, but I finished Goofy's Fun House few weeks ago. You can read about my whole playthrough in my Game Journal. Here are overall thoughts:
I think nostalgia will affect my rating here a lot. The game is simple, but it does everything it sets up to do really well. Goofy's house is fun to explore. There are a lot of things to interact with and Goofy comments on basically everything you see and do in the game. Everything is colorful and the world around Goofy's house seems full of life, even though it's mostly empty. Minigames are mostly fun, but the game doesn't bother to tell you how to control them and even when you figure it out, it's anything but not good. It's rough, dull and I have no idea how could my younger me ever finish it multiple times.
I enjoyed pretty much every minute of this two hours adventure. It was nice journey to my childhood and kinda made me want to play other PS1 games. 7.5/10.