You can call for specific types of Brickz via the Megaphone
!A Bricklayer Grunt alwayz has a supply of Breakable (Brown) Brickz
,but it is sometimez useful to have something that will prevent an enemy Gauntletz Grunt from passing,
as an Unbreakable (Gold) Brick
;or take away his Tool, as a Gauntletz-breaker (Red) Brick
;or remove him from the area, as a Teleporter (Blue) Brick
;or remove him from the game entirely, as a Bomb (Black) Brick
.You may provide the solver with the meanz to acquire such a desirable Brick.
Or you can be a bit mean, and just give him an Ordinary Brick
for his/her effort! 