Digimon World 1 is a game I've spent, many, MANY hours on. Constantly exploring the island, training my Digimon... When I first played, I actually didn't have a PS1 save card, as I was playing on the PS2. So, when I finally got a ps1 save card, I was able to blitz through a good chunk of the starting game. Getting Coelamon, Betamon, Palmon, Kunemon, Agumon, Meramon, Biyomon, Patamon, Unimon, Centarumon, and even Tyranomon! Even today, I can manage to get all of those crucial digimon pretty much Day 1 / Day 2.
Now, considering this predates the Anime, don't expect to see Gomamon at all, or Tentomon very much. However, there's some spots here and there that *may* look familar. The game's asthetic is absolutely gorgeous, and one I hope to replicate in my own style someday. Neon signs on the floor, plugged in trees, Wire roots, Lightbulbs scattered around... The game has such a nice, unique atmosphere, and it gets you immersed quite well!