【實用街機app】Alien Invasion|最夯免費app-綠色工廠好玩App

Aliens are threatening the Earth once again with their massive numbers. You must defeat the aliens! Gain upgrades to your spaceship by destroying aliens. Control the spaceship by tilting the phone / tablet and fire by tapping the screen.

Alien Invasion is a Space Invaders type of a Android arcade game with more modern game-play, awesome features and power-ups such as "slow aliens" power-up which makes aliens move slower by altering time. There is also an power-up which will cause meteor showers to attack the alien fleet! More features & power-ups are found in-game! Download now a fun and addictive shooting game for free!

Game features include:

- Multiple enemy types

- Awesome sound effects

- Upgrade system

- Dangerous meteor showers

- High scores

- Power-ups

- A lot of explosions (isn't that always awesome?)

- Free version is ad-supported and therefore uses internet connection to retrieve ads

Can you survive the overwhelming alien waves and stop the alien invasion?

Part of graphics (the spaceships) are from open sourced scrolling shooter computer game called Tyrian developed by World Tree Games Productions. Tyrian's graphics have been made available under an open license in 2007.