It's called the Arcadiator, from Parasit Studio, an indie pedal company.
It's basically a Fuzz with the possibility to tweak various parameters (octaves, LFO, wave shape...) in order to make it sound like an 8-bit console.
I bought it as a DIY kit from Musikding and it's one of my favourite pedals ever since it can do anything from basic gated fuzz to synth-like sounds to playing the Tetris soundtrack
I got it second hand in a pawn shop when I was on vacation in Dublin. It was initially supposed to be just a souvenir, but I kept it as I never had a complaint with it.