| 🤢👹 Cholera Monster |
| 🎅 Christmas Monster |
| 👹 Chuckness Monster |
| 🔥👹 Cinder Monster |
| 👸 Cinderella Monster |
| 🍪👹 Cinnamon Monster |
| 🧙♂️ Clean Monster |
| 🧹👾 Cleaner Monster |
| 🧹 Cleaning Monster |
| 🕰️👹 Clockwork Monster |
| 🧟♂️ Clog Monster |
| ☁️ Cloud Monster |
| 🥤 Coca Monster |
| 🍆 Cockness Monster |
| 🥥 Coconut Monster |
| ☕ Coffee Monster |