The "Adults Only" sticker is a commonly-used symbol by the visual novel-releasing company JAST USA on the covers of games which feature graphic adult content. It is commonly in the top-right or bottom-left corner of the front cover, though a handful of games feature in the top-left corner, as well a small section on the back cover.
An example of the sticker on the visual novel Saya no Uta/Song of Saya.
List of games which feature the sticker
- Absolute Obedience
- Amorous Professor Cherry
- Bazooka Cafe
- Cat Girl Alliance
- Chain
- Come See Me Tonight (both games)
- Cosplay Fetish Academy
- Crescendo
- Deus Machina Demonbane
- Dousin - Same Heart
- Do You Like Horny Bunnies? (both games)
- Enzai: Falsely Accused
- Family Project
- Gibo: Stepmother's Sin
- Hitomi: My Stepsister
- Idols Galore
- I'm Gonna Nurse You (both games)
- Kana ~ Okaeri
- Let's Meow Meow!
- Lightning Warrior Raidy (all three games)
- Little My Maid
- Moero Downhill Night (all three games)
- My Girlfriend is the President (fan disc only)
- Pick Me Honey!
- Pretty Soldier Wars AD 2048
- Princess Waltz
- The Sagara Family
- Secret Wives' Club
- Sensei 2
- Shiny Days
- Slave Pageant
- Snow Sakura
- Song of Saya
- Target: Pheromone
- Tokimeki Check-in!
- X-Change (all three games)
- Yin-Yang!
- Yukkuri Panic: Escalation
- Yume Miru Kusuri
- Yumina the Ethereal
Trivia
- School Days HQ, My Girlfriend is the President and Starless: Nymphomaniacs' Paradise did not feature the sticker on the front side of the game, only the back. However, the fan disc for My Girlfriend is the President, which was released separately, did receive the sticker on both front and back.
- Tokimeki Check-in! and X-Change have, both on separate releases, received the sticker despite both having an official AO rating from the ESRB. This is likely because they came in 2-disc sets that included unrated games; X-Change with the second game, and Tokimeki Checkin! with Dousin - Same Heart.
- Shiny Days received a special orange version of the sticker.
- There is still content not allowed at the "Adults Only" rating for JAST USA. For example, Family Project has some nudity involving an underage character digitally painted over with lingerie. Shiny Days removed sex scenes involving underage girls in one route, however left them implied through other sequences in the game. Starless: Nymphomaniacs' Paradise had CGs relating to bestiality and other fetishes illegal in some states removed. X-Change 3 had sequences of underage nudity and a rape scene censored. However, all of these later received fan restoration patches online.
- Aselia the Eternal was refused to be released in an "Adults Only" format due to some graphic material involving minors in its uncensored original Japanese version. It was only released in an edited all-ages edition.