46 Okunen Monogatari: The Shinka Ronreleased in 1990
46 Okunen Monogatari: The Shinka Ron (fan translated as E.V.O.: The Theory of Evolution) is an RPG, about one step more primitive than the Dragon Quest games published by the same company. You control one character as they progress through the different eras of life on planet Earth, fighting turn-based battles with damage being based on stats that you control directly.
Once you’ve pushed a stat to its uppermost limit, your character evolves into a completely different creature with different abilities in battle. The story itself is somewhat similar to Search for Eden, but much more fleshed out with a lot of different stories for each era that the game explores. And while Search for Eden ends with humanity as the pinnacle of evolution, The Theory of Evolution goes a bit further into the future…