Crack Down is a run and gun arcade game originally released by Sega in 1989, and ported to the Sega Mega Drive/Genesis in 1990.

Using a top-down perspective (akin to Gauntlet), the player controls either Ben or Andy, a pair of agents charged with stopping mad scientist Mr. X (Mr.K in the Sega Mega Drive version) from taking over the world, as they make their way through several timed levels, planting bombs and destroying cyborg enemies using guns (the "machine gun" and the "cannon" can be swapped back and forth) and smart bombs (which wipe out all enemies on screen.) The goal of each stage is to plant all of the bombs and escape before their collective timer goes off.