While browsing through App World I spotted a fun physics game for BlackBerry smartphones by Ivywire. The game is called Crush the Zombies and has both a free version with limited levels and a premium full level version. It has you cleaning out the town of zombies by crushing them with various objects. The game supports an odd variety of BlackBerry smartphones but runs nicely on my 9350.
You can download the free version of Crush the Zombies or the Premium $0.99 version in App World