You start with one shuriken as well, and if everyone wants to use a shuriken, each player 💵 discards their lowest card face up, giving everyone information and getting you closer to completing the level. As you complete 💵 levels, you might receive a reward of a shuriken or an extra life.

The trick is that players can't discuss anything about 💵 their own cards, or as the rulebook says, no sharing of information, no secret signs.  In the event 💵 of a misplay  because a player has a card in their hand lower than the card just played 💵  gameplay stops. All lower cards are discarded, and the team loses a life.