Bonus Win was an extreme difficulty stamp in Club Penguin. In order to obtain this stamp, the player had to reach a bonus round in Card-Jitsu Snow and clear it. The three methods to unlocking a bonus round are as follows, but vary: Completing three rounds within a time limit, completing three rounds without any ninjas being knocked out, or completing round three with all ninjas at full health.
This stamp was released on May 23rd, 2013, along with other Card-Jitsu Snow stamps.
This stamp is a bait item if a player attempts to perm it.