Before Duke Nukem had sunglasses, delivered pithy one-liners and surrounded himself with strippers, he was just kicking alien butt. To commemorate the 20th anniversary of Duke Nukem 2, Interceptor Entertainment and 3D Realms have released the 2D side-scroller for iOS.

"It's an amazing experience to be able to work on such a beloved franchise," Frederik Schreiber, CEO and game director at Interceptor Entertainment, said in a press release. "As kids, we were all big fans of Duke Nukem II, and working with Scott Miller and 3D Realms to bring this classic back to life on new platforms was a dream come true."

The game is available as a universal app on the App Store for $1.99.