There are many vehicle contraptions in bad piggies.Which I like to put in 3 categories: thrust, engines and blocks.
thrust has 2 mini-sections continuous and one-shot. While block has only 2 of its kind: wood and steel. and engines have 3 of theirs: V1, V2 and V8
continuous items are these: fan, which propels the opposite way its facing;rotor, which is the opposite of fan; and auto umbrella, which is like fan but crazier
one-shot items are exactly 1: fireworks, these are blue and red, each color activates all of them, but not the other colors