Crazy Eights Countdown: start with eight cards; each hand you win reduces your deal by one.; Action cards: 2 forces a draw of two, queen skips, ace reverses — the step that leads directly to UNO.; Stacking: answering a draw-two with another so the penalty accumulates.
Why people argue about this
People often assume that in Crazy Eights, you can stack action cards like a draw-two with another so the penalty accumulates, but actually, stacking is only allowed when answering a draw-two with an eight to reverse play order. This rule leads to many misunderstandings and disputes during gameplay.