Gubble is the most revolutionary and underrated piece of media of all time. It led many things to society which changed the course of humanity as we know it. Aside from that, Gubble is the best game of all time that also inspired a lot of classics of our generation like Silent hill 2, Halo: Combat Evolved, The Witcher and is the reason why Valve even exists.
It is impossible to say how bad Gubble as a piece is. I rest my case.
