The whole entire film is violent and suspenseful but in funny way as the violence is all slapstick.
There are several twists and surprises like in one scene the main characters lie to some mobsters about a lead mobster. They then board a bus but don't have exact change. With the police after them and then the lead mobster arriving at the warehouse and the bus driver saying he will give them 90 seconds to get change, things get very suspenseful but in a funny way.
A cab driver thinks he kills someone.
There's one scene where a robber points a gun at a dog and another where three characters walk down a scary dark street which might be serious, other than that it's all slapstick violence (and even these two scenes are meant to be funny).