Defend the Bunker is tower defense game on Symbian.
Like most tower defense games, you have to protect your base as waves of enemies try to invade. With lots of missions and upgrades, Defend the Bunker keeps the gameplay interesting. The graphics are perfect for the genre since they're 16-bit.
You also have access to air strikes and mines when there are too many enemies.
Defend the Bunker is a good game for tower defense fans.