Bombs appear like usual bombs - a black sphere with a fuse sticking out of the top and a skull drawn on to the bomb.
Bombs do not instantly explode when a blot makes contact with it. Instead, the fuse has to be lit and the bomb will explode soon after. For the fuse to be lit the player has to draw a line of ink on a patch of fire and continue the line all the way to the fuse of the bomb.
The fire will then burn down the line and ignite the fuse. The explosion made by the bomb can destroy any platform and kill blots, as well as kill enemies. Bombs cannot not be moved and have to be detonated in order for the blots to move on to the finish flag. Exploding doodles act similar to bombs, as they explode and can remove parts of a platform.