Sounds

Settings → Sounds. Global volume and a browser-sounds master. Per-event enable, clip picker, and volume:

Startup, webpage loading, UI, file downloaded, PowerUp add/remove, license activated, VPN connected/disconnected, bad link, generic error, error page.

Stealth Buddy has its own bank: Grapple, Teleport, Laser Eyes, Levitate, Walk, Typing, Laugh, Message, Turn On, Shutdown, Slide Down, Jump/Land.