Brick is a block material in BABFT. It was obtainable in the 2018 Easter event from a Red Egg. It can now be obtained by completing the Rings(100 Bricks), Target (50 Bricks), Dragon (100 Bricks), and Ramp (25 Bricks) quests giving a total of 275 Bricks.
You could also obtain 5 bricks from using the code "leescode," meaning you can get 280 bricks however "leescode" is now expired.
You could use the code "Cannon Crazy" for 40 Bricks currently Cannon Crazy is still valid.