| Mystery sounds | The round prompts — the game's core entities | Real and central; the catalog itself is unpublished and grows with updates (confirmed by the 09/09/26 update and the 09/10 new-sounds event) |
| Custom mics | Purchasable items in the mic shop (Coins) | Named by the official 09/09/26 update; catalog, prices, and effects undocumented |
| Players | Up to 8 per server; performers and raters in rotation | Documented: server size 8, live player rating, head-to-head with friends |
| Leaderboard entries | Persistent result surfaces named on the official page | Named systems (streaks, stats, leaderboards); scopes and reset rules undocumented |
| NPCs, enemies, bosses, pets | Common Roblox entity families | None exist in any checked source — this is a round-based party game, not a combat or collection game |