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  Battle of The Universe A Free Online Game
Graviton X A Free Online Game
Graviton X
Epic Dog Fighter A Free Online Game
Epic Dog Fighter
Space Dragons A Free Online Game
Space Dragons
world hero (Origin-X) A Free Online Game
world hero (Origin-X)
TetBlock A Free Online Game
TetBlock
Alien Attack A Free Online Game
Alien Attack

Online difficult Games
Cute Anime girl Dress Up Game

Plays: 4429
Category: Customize Games
Hinata Hyuga, a member of Team 8, who was trained well by her teacher to build self confidence and became stronger, is now feeling a bit low and finding it difficult to express her feelings to Naruto. Dress her up beautifully so that she can confidently speak up her mind to Naruto
Brave Plane Online Game

Plays: 4407
Category: Shooting Games
Piloting the fighting plane, free the world from air invaders in the game Brave Plane. Your plane is equipped with fighting weapons and a bomber. You are entrusted with a difficult mission to eliminate all enemy raiders and land invaders. The detachments of airplanes, helicopters, fighting airships and landing party force will attack youduring the mission. Besides, avoid the attacks of the land patrol towers and rocket emplacements. A bomber will helpto resist. It is possible to get weapons, ammunition, protection, life and scores periodically. Good luck in a battle!
Brave Hussar 2 Chinese Mobile Game

Plays: 4387
Category: Adventure Games
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Army of Destruction Game

Plays: 4383
Category: Shooting Games
[NOW WITH MORE LEVELS] This is an action shooter where you have to defend your city from the alien invasion. The game has 15 intense levels, unique story, 6 unlockable weapons, base upgrades and 6 different enemy units. Beat the game and watch the great final. UPDATE: Based on the community feedback, a lot of people found this game too difficult on the first levels and easy on the last levels. Now we balanced the weapons and enemies to fix this. The hit area has been changed a little bit, and the weapons areas and damage has been changed also. TIP: Every Enemy has a weapon to defeat it, shotgun and pistol for kamikazes, rifle for bikers and cloack soldiers, rocket and laser for mech units. UPDATE 2 We have added 4 new levels. If you find this game too easy, try this new version for a challenge UPDATE 3 Some people said that mission 10 was way too hard. We’ve tweaked it a bit to make the mission a little easer
Pop The Ball Game

Plays: 4352
Category: Action Games
Pop the ball to gain points. Make the game more difficult by wearing 3d blue/red glasses.
Prehistoric Jumper Game

Plays: 4330
Category: Driving Games
Prehistoric Jumper deals with a pretty prehistoric car made of stone which has to make its way through dinosaurs. In spite of the landscape’s beauty, the track is dangerous and the player will find it difficult to remain alive.
Impossible 2: Jungle Escape Game

Plays: 4318
Category: Puzzles Games
Impossible is back with round two! Now with 15 levels to play through, each as hard as the last, can you fight your way through the jungle to escape at the end? The game has an auto save function, so players can exit the game, and continue playing at a later data without having to start from level1. Use the arrow keys to move, and like in the last game, don't touch anything. Hope you enjoy the game
Speedway Challenge Game

Plays: 4318
Category: Driving Games
A new game of racing is about speed and compete with your opponents. Select your favorite character to race. You have three levels to choose, beginner level is for amateur and other two are difficult for experts. Select your controls, you can play with keyboard or with mouse. You are provided with default car to race. You can buy an upgraded car if you win the race. You have to win five circuits to win the Speedway challenge Title. All the best!
Hovercraft Racing (Facebook) Game

Plays: 4316
Category: Driving Games
Hovercrafts are easy to learn and difficult to master. Come and participate in this hovercraft racing championship!
Vase Mystery Game

Plays: 4311
Category: Adventure Games
Vase Mystery is a puzzle game, where player have to break glass vases with magic. There are 24 campaign levels and much more custom levels made by players. Campaign levels are not very difficult if you know some main concepts of the vase magic.
Flash Nethack Game

Plays: 4302
Category: Adventure Games
A classic dungeon crawler. Unlike other games the emphasis in NetHack is on discovering the detail of the dungeon and not simply killing everything in sight – in fact, killing everything in sight is a good way to die quickly. NetHack is a very deep and very fun game but also very, very challenging
Ben 10 Alien Hunter Game

Plays: 4261
Category: Shooting Games
Help our hero Ben10 to catch alien. On your way to reach alien difficult stages will be waiting for you.
Symbol6 Online Game

Plays: 4255
Category: Action Games
The Symbol6 machine is about to break down. Take control and match its symbols with incoming ones by a simple flick of a finger! See how long you can keep the machine running in this symbol-matching mania where your reflexes are put to the test. Symbol6 features a unique puzzle game mechanic, specifically designed for the Apple iPhone and iPod Touch. It is easy to learn but difficult to master. The game is easy, fun and casual, all at once - perfect for breaks, planes, trains or anywhere you find yourself in need of fun.
Flower Blossom Game

Plays: 4225
Category: BoardGame Games
Make the flowers to bloom by clicking them. Every level is more difficult, so you will have to use your skills to understand which flower must open before. When a flower is clicked, you affect the 4 flowers attached to it.
Snow Ball Warrior Game

Plays: 4209
Category: Shooting Games
The main aim of the game is to defend the snowballs before destroying the Igloo. Buy different rocks and weapons to destroy the difficult snowball. Upgrade your weapons and ammo to handle strong rocks.
Plexago Game

Plays: 4207
Category: BoardGame Games
Plexgao is a game of mind. A simple turn based puzzle game in which you build shapes, jump enemies, and fight for board control. Play against the 5 different Ai or play your buddy via the local Versus option. Intuitive like checkers, complex like chess.
Colorline Game

Plays: 4206
Category: Action Games
Colorline is a relaxing Puzzle game, where the player draws the line color to blow bubbles of same color! Do not be fooled by mere description, as the game for many players will prove very addictive and difficult. Broken Arms Games wishes you fun!
Noughts and Crosses Extreme Game

Plays: 4196
Category: BoardGame Games
he most extreme Noughts and Crosses ever created! With explosive gameplay, a spinning board and new squares that appear from thin-air, play off against your opponent in a race to the highest score. You may be good at Noughts and Crosses, but can you beat Noughts and Crosses Extreme?
Cubius Game

Plays: 4186
Category: Shooting Games
Cubius is a fun and addicting puzzle game where you have to click groups of coloured cubes to make them disappear and the amount of coloured cubes increases each level. Sounds easy? I think you'll find it gets addictingly difficult on the higher levels!
Christmas Jewel Deluxe Game

Plays: 4182
Category: BoardGame Games
Santa has come bearing gifts. Delete the pictures you see together and not let it flood the screen. It will become more difficult. If you like games for Christmas, you'll like this a lot.

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Tips: Explosion graphics animate until the end of their timeline and then disappear. A single frame explosion will disappear almost instantly and not look that great. Usually 20-40 frames for an explosion should work well.