Robber
When a shellfish becomes a drunkard and sees a cross, they'll become a robber. Because they'll steal the cross!
Some people make really bad choices when they're drunk, and in this case, when a shellfish gets drunk and sees something it wants it'll just rob people for it.
ぞく
None
None
Once the shellfish has a taste for being a robber, he'll join a Bosozoku (ぞく) bike gang so he can keep stealing more and more crosses. He'll drink more, steal more, and get to ride cool motorcycles.
Picture a robber shellfish in a Bosozoku bike gang. Look at him the wrong way and he and his gang will steal all your stuff next time!