Johnny Dangerously was directed by Amy Heckerling, who made Fast Times at Ridgemont High and, like most other female directors, has been waiting for a chance to make a lot of money with a movie, waiting for her breakthrough film. This ought to be it: It's a splendid sophomoric comedy, and these days, in the time of Hollywood's perpetual freshmen, that's saying something. [21 Dec 1984, p.D1]

Some delightfully unexpected visual gags and off-the-wall one-liners, along with the good-looking period settings and a wealth of minor characters, give the film its strength. It becomes a little predictable in the middle, but the pace picks up in time for the classic final shootout. Despite lapses, infectiously good-humoured.

Johnny Dangerously belongs to the comic genre known as the Dumb Movie, but it's a pretty smart example of how to be stupid. [22 Dec 1984]

Johnny Dangerously winds down as it moves along, eventually descending to a lowest common denominator of dopey adolescent gags that overpower the parody. Still, even at its thinnest, it remains good-humored and intermittently entertaining.

Only the first half of Johnny Dangerously really works, but then such nonstop silliness is almost impossible to sustain. [14 Jan 1985, p.53]