|Hack of||Battle City|
Tank 1990 is a hack of the Famicom game Battle City, developed and released in 1990 by Yanshan Software. It changes the levels of the original game.
The original release was in the form of a multicart containing 14 different sets of level hacks, labeled from "Tank A" to "Tank N". Later releases only feature the Tank A mode, disabling the 14-in-1 selection menu.