Cannonball Blitz is a game programmed by Olaf Lubeck for the Apple II and published by On-Line Systems in 1982.

An historic military spin on Donkey Kong, rolling cannonballs replace barrels, a soldier stands in for the large ape, and the objective of the first level is a flag rather than a kidnapped woman.

Cannonball Blitz achieved some notoriety in the Apple hacking community as being difficult to crack.

wrote that "Cannonball Blitz [for the VIC-20], make no mistake about it, is Donkey Kong in dress blues.

The magazine favorably reviewed the animation and the "unbelievable" sound effects, and concluded that it was "a very good version of a fine game".