Metroid II: Return of Samus is more of the original Metroid, but improved upon. There is still repeating rooms and the greyscale and smaller screen size may make navigation a bit more difficult, however due to the game being incredibly linear it gets around this. I'd say if you want to play Metroid II, then just go play Samus Returns or AM2R, as they take the original concept and adapt and improve upon the original. Overall, not a bad game, but not really one I'll find myself going back to.