Finally finished this one after struggling with the final bosses for a few days. What a masterpiece. Challenging to some who isn't the best at games and i often got lost and went around in circles after missing something very simple. However this never felt unfair or unduly punishing just me being an idiot. The game design is the selling point of the game and that fundamental Metroid feeling that i heard of so many times was introduced to me really well as the branching paths of the world unfurled before me. In fact the way that the game slowly introduces all of its features to you is truly rewarding and gives a sense of accomplishment that is missing in some modern games in which they just give you everything from the start. The only possible flaw is the lack of a rewarding story at least for me personally. I will go away and research it a bit more to get the full picture and the setting was explained atmospherically really well as I went along. A clear goal and desire for catharsis would have amplified it a notch though. I will be playing the sequel soon!