I see nothing in this game, it just tries to be artistic but let me tell you that making a game with pizels doesn't make it artistic, neither does that the fact that only has like 3 colors or the fact there there is a tomb and rain.
It's not a complex thing, it's not that "I don't get it", it is just a plain, boring, shitty game that tries to be artistic and fails. Stop making simple pixelated gaes to feel artistic and/or intelectual.