Base 1 is the second stage in Contra. It is the first enemy base infiltrated by the player.


The base's layout is in the form of a complex of hi-tech corridors full of enemy troops and defense mechanisms. The framework is divided in several sections, each divided by what appears to be emergency shut-down walls that have to be destroyed in order to progress further into the building. Each of these walls is heavily guarded by numerous enemy troops, turrets, and other traps.

At the end of the level, Garmakilma, a defense mechanism armed with spreading turrets, awaits the player for a final showdown.

In the NES version, the path is straightforward without a time limit, allowing players to play at their leisure. However, in the arcade version, players have to decide which path to take, either left or right. In addition, there is a quite strict time limit; when it reaches zero, the player will lose a life, implementing a sense of urgency to this version.