This is not a game. It's pure art. The simple graphic doesn't need to be improved. This is just great artwork, and the music suits the game well too. I liked how you made three very different stages with a bit increasing dificulty. And the cave seemed really untouched. Not sure what he did find there. The ending. Well, not sure if I got it. He said there was only one thing that could save humanity. And I choose spirit because the spirit is eternal. Not sure if that was the right choice. That it saved humanity or not.