I play Doom using DosBox for the PB. It has the advantage of being able to run lots of old MS- DOS games and is relatively easy to use. It can be found in BlackBerry App World.
You forget to mention the need for a separate keyboard to go along with this method....
Posted via CB10
I have a screen overlay which gives me the basic keys for playing the game i.e. arrows, space bar, F1, F2 etc. No need for the keyboard. Having said that it does take some getting used to and a proper keyboard would probably be easier.