Vertical shooter, lots of updates incoming for this one!
Based on the classic Tetris game, Gemdrop gives you the same fun gameplay on your Android device.
Invaders Mars Defender
The Invaders return for a third attack, this time they’re going for our Mars bases, and they’ve brought their boss ships with them!
download the source code for Basic4Android here: https://dl.dropboxusercontent.com/u/8673694/my%20games/Invaders-source.zip