I bought all four, tried them one by one at the gate. I got arrested every time except for the very last one I tried, it was the gnarled one. They take it away even if you go through. But I tried it a second time and the same one worked.
However in original LD, every game you went through had a different one be the good one, I don’t know if it’s the same in this.
Btw I bought all four at first and then went to the gate to try them. The last one was right but when I got arrested, they didn’t take the other ones away, which is nice