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Online invasion Games
Giant Walking Eye Game

Plays: 2877
Category: Action Games
Invade the Earth. Upgrade your walkers. Destroy humanity. This distance runner puts you in a an alien eyebot strider through 25 of the world's major cities. Use your lasers and missiles to fend off the human's pathetic attacks as your claw harvests their flesh for the good of the alien species. As you pick up speed, you'll gain a powerful shield, protecting you from tanks, bazookas, and helicopters.
Shadow Alien Invasion Game

Plays: 2869
Category: Action Games
Shadow alien invaders are coming for Earth. The military has selected from a group of top military test pilots to lead the first line of defense against the alien attack. You have been strapped into a prototype starfighter which has just been launched from Earth's rickety space station. Defend Earth or die trying!
Cyrus Invasion Game

Plays: 2857
Category: Action Games
Invasion of the Cyruses! Use the mouse to survive from them for as long as possible!
Dungeon Action Game

Plays: 2840
Category: Action Games
Join Target Practice the elf as he searches for the orb of shadows in ancient ruins to stop the undead invasion.
Dragon Riders Game

Plays: 2829
Category: Action Games
Defeat all enemy dragon riders to save your town from invasion.
Run! Run! Alien Invasion! Game

Plays: 2811
Category: Action Games
Run very fast because of Alien invasion!
Chopraider Game

Plays: 2810
Category: Action Games
Strike back at the menacing red forces and stop their invasion.
Suckaz Game

Plays: 2800
Category: Action Games
The Primulan Dynasty of Lactorze Six has begun its invasion. We must evacuate as many people as possible before their primary weapons - Black Holes - swallow our home planet. You will take control of our only defenses, a series of remote control attack vessels, in order to ensure as many escape this carnage. We'll be able to send you upgrades at the same time as you pick up treasure from the destroyed enemy ships.
Terror in the graveyard Game

Plays: 2799
Category: Action Games
You are in the graveyard. Can you survive the invasion of different creatures?
Retro invasion Game

Plays: 2798
Category: Action Games
If you like to shoot things (especially aliens), then you need to play Retro Invasion. Prepare for an onslaught of aliens that come wave after wave! Shoot your way through 100 waves. Shoot spaceships for weapon upgrades like the Atomic Blast or a Laser.
Alien Invasion Game

Plays: 2763
Category: Action Games
Alien vs. Alien. Destroy Yourself
Red Invasion 1.3 Game

Plays: 2762
Category: Shooting Games
A clean design shooter game. Avoid RED TEAM invasion! Resist 3 days of invasion and destroy the ultimate red weapon! Music: Anth0n - "Laser Barrage" from Newgrounds.com St0rmChaser - "Eternity" from Newgrounds.com
Evilbots Game

Plays: 2760
Category: Action Games
Destroy the EVILBOTS !!! Collect all the secret plans about the new intelligent evil cpu. Save the world from the robot invasion.
Earth Invasion 2012 Game

Plays: 2734
Category: Action Games
The Earth is in grave danger.... The threat comes from the deep space. The aliens are ready to occupy the planet. To avoid the invasion you will have available a limited number of weapons. Use the MOUSE to launch the missiles and SPACE to use the Super Bomb. Good luck! Tips & Help: info (at) video-giochi.org Another game by http://www.video-giochi.org
Jetfighter Game

Plays: 2729
Category: Action Games
save your homeland from the alien invasion in this exciting arcade style shot em up! - lots of pre-rendered 3d sprites and backgrounds - An engaging storyline - a complete upgrade system (weapon shop) - 3 different ships to choose from - each ship has its own unique weapons - An unlockeable secret ship
Rescue from Meteorite Shower Game

Plays: 2715
Category: Action Games
Action Game where you have to destroy meteorites and enemy spaceships. There are several missions: Rescue people, scort a ship with refugees, avoid alien invasion, and of course, destroy everything that moves!
Invasion Game

Plays: 2712
Category: Action Games
The horde is approaching Earth. Stop them before it's too late.
Robots vs Zombi Game

Plays: 2709
Category: Action Games
The soviet AI is back! Evil corrupted masterminds have found a new way into his base, a zombie plague has started! You have to defend once more from possessions from the undead. Utilize your skill tree with your hero, use turrets and traps against the invasion! ----------------- its a Hero Tower Defense game - it means you will have to build towers and pimp up your Hero to kill enemies. Enemies will try to rob you. At some point, you will able to Rambo simple levels =) then switch to Hard mode. ------- If you ever played 'Flash Element TD' or 'Cursed Gems' - its same Genre, so you know what to do =)
Invasion of the Galactic Goobers Game

Plays: 2698
Category: Action Games
Event of an attack on the Galaxy Groober, lots of enemy ships that come and you must prevent it.
Sentry Defense Game

Plays: 2674
Category: Action Games
Defend your home planet from invasion with mines, wormholes, time warps, and decoys.

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Tips: Setting the opponent movement speed to zero can give you a platform for you to do your own animation instead the opponent graphic. You could make an opponent popup and then hide again using animation instead of the built in movement.