From where did he get 2 scissors and 4 papers? In episode 5 of Kaiji, Kaiji plays scissors against Kitami.

Later in the same episode, we find out he has 2 scissors and 4 papers other than 30 rocks. Where did he get these?
After being tasked with collecting as many rocks as possible, and then splitting up, the group mentality was that while collecting scissors and paper was not the goal, there was nothing wrong with it. I can't remember whether or not Alix's answer is specifically how it happened but it may very well have been. I can however remember that it was insinuated that they were collected after they split during one (or multiple) trades in their mission to collect rock cards. There did not need to be a specific time or reason they got those cards as the writers covered their bases in the montage of trading/collecting cards.