This is legit one of my all time favourite games. Hell i'd go as far to say it's my all time favourite.
However I should add this game isn't for everyone. It's weird, has a psuedo on rails mechanic, combat isn't that deep etc.

However what it is is a fantastic piece of art that is truly one of the best games to come out of the auteur Japanese scene. It's best to go in completely blind but if you like the combination of weird stuff mixed with political themes of Metal Gear Solid you might like this game even if it's a lot less clear cut than MGS. This is a game I think about constantly and I still haven't truly understood it all. Please buy it if you think you'd like it and try stick with it. Whilst it's flawed objectively in some ways to me it's the perfect game.