One Red Brick is found in each Act of a story. The levels that contain one have a Red Brick icon on the left of the black bit at the bottom of the top screen when a level is partially selected. A green tick appears next to this icon if the player has the Red Brick in the level.
LEGO Battles: NinjagoEdit
Two Red Bricks are found in each Act. They have the same appearance as in the original game, and they grant very similar powers, although some are different.