How many side missions are there in batman arkham city

they are 12 side missions in Arkham City

1. Arkham Assault: Acts of Violence
2. Batcomputer: AR Training
3. The Riddler: Enigma Conundrum
4. Bane: Fragile Alliance
5. Zsasz: Cold Call Killer
6. Nora Fries: Heart of Ice
7. Stolen Freeze Tech: Hot And Cold
8. Hush: Identity Theft
9. Iceberg Lounge: Remote Hideaway
10. Deadshot: Shot in the Dark
11. Mad Hatter: The Tea Party
12. Azrael: Watcher in the Wings