ScrapTD Barrels

There are 17 Barrels as of now in ScrapTD. Except the automatically unlocked ones, all Barrels cost 100 Bricks to be unlocked in the store. You can also check all Defenses at the Defenses page.

Barrels' Physical Attributes
Here's some information about the Barrels (all stats here at level 1, levels increase health and damage by x1.03 per level):