Escape 2020 (Vic 20)

It is 2020. It has been 2020 forever. It will be 2020 forever more. You must escape 2020. Collect all 44 keys from the rooms of 2020 and find the exit to escape. Your task won't be easy. There are monsters roaming the many rooms and they aren't looking to be your friend. Blast them before you become their dinner. Oh, did I say they have acid for blood? Well of course they do, this is 2020 afterall…