Might not be exactly what you’re looking for as it might be iOS only, but theres two games called Evoland and Evoland 2 I played a long time ago. There is sort of a past/present/future and you travel between the times. When in past it’s all 8 bit graphics. In present it’s a step up but still not great. In future it’s full 3D. I really enjoyed those games. But I’m not much of a gamer so you can take it with a grain of salt.