Nickspoon released a port of Openglad for the GP2x.

Openglad2X is a port of Openglad (snowstorm.sourceforge.net), an SDL remake of gladiator. It plays fullspeed with sound. All controls are detailed in the README file, as is help with installation.

http://archive.gp2x.de/cgi-bin/cfiles.cgi?0,0,0,0,26,1124