Thugs’ appearance is a common fact to every Stage in MegaMetroCity as we pointed out previously. But there are two types of cards that somehow break the basic rules of appearance.
Rear appearance is the first one. Thugs’ cards make Thugs show up in the column on the leftmost part of the board tile, slowing the progress on the Stage. Apart from catching our Heroes off guard, they might get beat up.
As another alternative to the regular appearance, they can also appear from doors. This card breaks all the rules of appearance. First, because Thugs make their appearance from the cells next to any door placed at the top of the board. Secondly because this card does not have into account the number of Heroes in the game. Always the same number of Thugs appears.