Galaxy Shooter is a fast-paced top-down perspective shoot'em'up action game. Required skills are more than fast reactions and memorising enemy attack patterns. The player must also have strategy skills to equip proper upgrades and use the appropriate skills during specific missions.
https://play.google.com/store/apps/details?id=com.tubigames.galaxy.shooter
Features:
# Different alien races, hundreds of entities to fight against
# 100 missions in 16 unlockable galaxies with multiple difficulty levels
# Ability to use active skills during the missions
# Fully customizable spaceships with hundreds of upgrades
# Exciting boss fights
# Achievements and Leaderboard
# Galaxy Shooter is a sequence to Starship Commander
Also available in HD. HD version is optimised for tablets and large screens
https://play.google.com/store/apps/details?id=com.tubigames.galaxy.shooter.hd
Alternative download links:
Phones: http://apps.opera.com/en_hu/galaxy_shooter_space_invaders.html
Tablets: http://apps.opera.com/en_hu/galaxy_shooter_hd_star_invader.html