Robo Defense is the ultimate portable tower defense experience. Featuring open maps, upgrades, achievements and nice graphics.
The full version features 5 maps with unlimited upgrades and difficulty levels.
A free version is also available (try it first!).
Free version progress is automatically imported into the full version, should you choose to upgrade.
HTC Desire, San Francisco: Turning off "High Quality Graphics" fixes known issues.
Galaxy S: Turn on "16-bit Backgrounds" to fix studdering performance issues.
Atrix: Disable sound to improve stability
Performance tips: If the game is running sluggishly, try playing fully "zoomed in". Turning off "High Quality Graphics Mode", in the options menu, will also help on some phone models.please note this cannot be updated through the android market