Earlier editions of this game (1994-1996) had a die, the Uno cube, which was used to determine which kind of block had to be moved. In the versions with dice, the die determined either the number or the color of the block to be removed. The Reverse and Draw Two actions were only reflected on the die.

In the later non-dice versions (1999-present), the actions were instead represented with symbols on some of the blocks (Reverse, Draw Two, Skip Turn, and Wild).