BioShock 2 Gene Tonics

In the BioShock 2, the player as Subject Delta is able to choose from a vast selection of Gene Tonics to equip. With Tonic Slot upgrades, the player can equip up to eighteen tonics. Tonics can be equipped and mixed in any order up to the maximum number. Most tonics are purchased at Gatherer's Gardens or found throughout the game, the rest can be earned by doing research. Tonic bottles in BioShock 2 glow a bright blue color.