- 🟥 red square
- 🆎 AB button (blood type)
- 🅰️ A button (blood type)
- 🅱️ B button (blood type)
- 🆑 CL button
- 🅾️ O button (blood type)
- 🆘 SOS button
- 🉐 Japanese “bargain” button
- 🈹 Japanese “discount” button
- 🈲 Japanese “prohibited” button
- 🈴 Japanese “passing grade” button
- 🈵 Japanese “no vacancy” button