Solve 5% of riddler challenges

Rescue the guards and henchman from the Joker toxin in Decontamination

Complete a combo of 5 moves (any play mode)

Finish the game in Normal Mode

Escape the hideout.

Complete DNA Sequence 11.

Get all Hidden Blades, Item Pouches and Armor upgrades for Ezio.

Discover the Assassin's Tomb inside Santa Maria della Visitazione.

Kick a Guard while using the Flying Machine.

Spend 5000 florins on Courtesans.

Buy a Painting from Florence and Venice.

Complete training and reenter the Animus.