Instructions
Collect coins. Coins can be found by completing side quests, finding them in each region and by killing pirates. Depending on the activity, the amount of coins received may vary.
Press "Start" to access the "Assassin's Creed: Bloodlines" menu.
Select "Upgrades."
Select "Synchronization Strength" to upgrade your health. The amount of coins required to upgrade your health varies based on the amount of time you've upgraded it.
Select "Confirm" to save all changes.
Press "Start" to be taken back to the game.