The okey joker in 101 Okey works like in classic Okey: it substitutes for any tile in a run or set, and it takes on that tile's point value.

The indicator sets the okey as the tile one number above it in the same colour. When you use the joker in an opening meld, it counts as the value of the tile it replaces, helping you reach the 101 threshold. Because it is so flexible and valuable for points, most players hold the okey until it secures their opening or their finish.