Duke Nukem: Critical Mass is a 2011 action platformer developed for the Nintendo DS. In this game, the Earth Defense Forces deploys Duke Nukem to investigate the disappearance of agents in a time travel mission. Players control Duke as he battles alien threats across various levels using weapons, platforming skills, and unique abilities to restore order and save humanity.
The Earth Defense Forces attempts to ensure the Earth's continued security by monitoring the future with the help of their own time machine, but both their agent and a special team sent there have been confirmed MIA. Knowing something is wrong, General Graves sends in the famous Duke Nukem.