This 36-card Kaijuu Expansion Deck contains Monsters and words relevant to their lifestyle, such as “Radioactive,” “Beasts,” “Devour,” and “Tokyo.” Each expansion to Japanese: The Game adds new vocabulary words, and thus the rules that go along with how each noun, verb, or particle can be placed to make a sentence. The expansion decks are shuffled in with the main deck to accommodate more players (the game plays 2 by itself and needs either an additional core deck or an expansion to accommodate more), or just to add less common words to the mix for 1-2 players.