The Entertainment Software Rating Board has revealed its summary for One Piece: Pirate Warriors 4. The action game ended up with a Teen rating due to contents categorized as Language, Suggestive Themes, Use of Alcohol and Tobacco as well as Violence. You can find the full ESRB description below:
This is an action game, based on characters from the One Piece universe, in which players clear routes, defeat chiefs, and accomplish combat objectives to become King of the Pirates. Players fight their way through hordes of enemies, using punches, kicks, aerial attacks, and cartoony weapons (e.g., oversized swords, mini-tanks). Some characters use various artillery (e.g., cannons, bombs, rapid-fire bullets) to defeat enemies. The frenetic melee-style combat is highlighted by cries of pain, impact sounds, and explosions. Cutscenes sometimes depict characters getting dramatically slashed or impaled. Some female characters wear low-cut outfits that reveal large amounts of their breasts/cleavage. The dialogue also includes suggestive material (e.g., “Now that I’ve won…Maybe you’d be so kind as to show me your panties”; “I can’t believe I have to work together with a pervert like you…”). A handful of characters are seen smoking cigars, and one scene depicts characters drinking sake. The word “sh*t” appears in dialogue.
If you are interested, you can pre-order the physical version of One Piece: Pirate Warriors 4 with this link on Amazon.