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Polar Bear Palooza
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Monkey and the Fruits
SHARKA A Free Online Game
SHARKA
Alien Shootout A Free Online Game
Alien Shootout
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CryoticGamer

Online challenging Games
Xtreme Cars Hidden Letters Game

Plays: 1917
Category: Puzzles Games
Well, Xtreme Cars Hidden Letters belongs to a certainly one of the most challenging type of flash games around. It's related with detecting the hidden letters from the pictures and it's not always easy to achieve that. In this game, there are 3 images offered to play into and each of them holds a number of hidden letters that are not so easy to detect. So, focus and try to notice them to be able to successfully finish each of the pictures. To be able to play, use only the mouse key to press on the letter every time you detect one of them on the pictures. Good luck.
Tropical Uphill Driver Game

Plays: 1914
Category: Driving Games
Drive your giant monster jeep with spike roller, crashing and destroying anything that gets on your way. Reach your helicopter without crashing your jeep. Collect as many money as you can, don't lose the balance and you will be the best Jungle War Champion! Drive your monster 4x4 jeep with arrows. Have a lot of fun playing this free classic but amazingly challenging uphill racing game.
Chime Breaker Game

Plays: 1911
Category: Action Games
A block-breaker game with 10 progressively challenging levels filled with musical chimes.
Kamikaze Pigs Game

Plays: 1906
Category: Action Games
The smell of sizzling sausages fills the air as pigs turn out by the dozen to answer a call to arms, only to fall squealing before an onslaught of murder, mayhem and deliciously bacon-flavored carnage. What are they so afraid of? Why have the pigs gone to war in the first place… and whose bright idea was it to put a big, shiny red button on every last rocket, plane, and tank in their arsenal? Join the fun in this fresh take on the chain reaction game genre, and send these porkers to their doom with a soft bang and a loud SQUEE! KAMIKAZE PIGS features 40 levels of gameplay for the casual player… or, you can grind it out, and in so doing unlock hidden levels and a bonus Big-Boss! Play through a series of richly detailed environments, including day and night levels! Achieve kill combos of 70, even 80… can you make it to 90? Dozens of challenging achievements and fun upgrades; unlock new features with stars, and buy with in-game cash. Achievements don’t just sit around, either; they offer additional stars towards future upgrades!
Cyber Kulkis: Cpu Game

Plays: 1900
Category: Action Games
Cyber Kulkis, a small, spheroidal entity is on a quest. A quest full of glory and logical madness. A quest of clearing weeny worlds and minute lands of waste. Cyber Kulkis: CPU takes you on the journey through 20 challenging levels featured aroudn electronics and multi-switch-teleport rooms.
Bloosso Run Game

Plays: 1895
Category: Action Games
An addictive running action game. Something really terrible has happened in the land of Bloosso! Run for your life, unlock achievements, collect resources to buy cool items.
The Unexpected Bug Game

Plays: 1890
Category: Action Games
The Unexpected Bug is a challenging action scrolling atari-like retro game where you need to avoid and kill robots that tries to kill you! Try to fix the “Bug” in this running-like game full of upgrade and achievements!
BeatTheLevels Game

Plays: 1889
Category: Action Games
An entertaining and challenging action/platform flash game with over 20 uniqe levels. Can you beat each level to, well, beat the game?
Super Vehicles Memory Game

Plays: 1886
Category: Memory Games
You've spent years collecting cards of your favorite cars, yet last night's storm got in your house and blew them all over the place. It is now time to find them all and re-arrange them in the proper order, but don't slack around as you don't exactly have all the time in the world to do it. In Super Vehicles Memory there is a total of six levels for you to complete, with each one becoming increasingly challenging, featuring more symbols without giving you too much more time to sort through them. The controls are about as simple as they ever get as the only thing you need to use is the left mouse button. Once you click on a square, it reveals its symbol, and when you click on two of them one of two different things can happen: either they match and the squares disappear, either they don't and revert back to their hidden position.
Motorcycle Forest Bike Riding Game

Plays: 1872
Category: Driving Games
Take your bike out for a challenging journey through the forest in this cool bike riding games.
Motocross Madness 2 Game

Plays: 1862
Category: Sports Games
Start a new adventure with Motocross Madness 2 game. Drive your motorcycle as fast as you can on a ruff mountain terrain. It may look simple to drive but this is a challenging game and it is difficult to keep your balance. Finish all the eight levels in the Motocross Madness 2 game to prove you are the best motorcycle driver ever. Good luck and have fun!
Julia Holidays Game

Plays: 1859
Category: Puzzles Games
A classic but amazingly challenging hidden object game by Free-Escape-Room.com. Julia celebrated her birthday in office last night and now her goal is to clean her room quickly. Help her to do this as quickly as possible. Game consist nice graphics and nice music.
Fort Defender Game

Plays: 1858
Category: Action Games
The game involves map style of theme where the player needs to defend from the conquerors from other forts to enter in to their's. Player uses mouse to click at the desired place to install the defending weapon to obstruct the enemy trespassers to enter the fort. As the time moves the speed and number of enemies goes up that makes the defender feel more challenging to play.
SUNKEN WORLD Game

Plays: 1856
Category: Action Games
Take control of an enormous Kraken beast defending a mythical underwater nation from the invading humans. Think 'Avatar' combined with '20,000 Leagues Under the Sea' Attractive graphics, unique theme, addictive and challenging gameplay. Build experience points to unlock special powers. Great particle-fx explosions! (Please avoid playing this game using Chrome. There is a known lag issue caused by the browser itself)
Find Christmas Cake Game

Plays: 1855
Category: Puzzles Games
This is the 526th escape game from enagames.com. The story of this game is to find santa cake and enjoy this christmas eve with your family and friends. Assume that one day you heard a news like santa kept his christmas cake inside the house and challenging you to find the cake. Try to get the cake and enjoy the day. Click on the objects to interact with them and solve simple puzzles. Play enagames and have fun!
TheBall Game

Plays: 1851
Category: Action Games
Help ‘TheBall’ to accomplish his journey by jumping and rolling in this platformer with unique graphic style. 20 challenging levels will test your reflexes. ‘You want More?’Three gold medals can be earned in each level for the most persevering and skilled players.
Stephany at fair Game

Plays: 1851
Category: Puzzles Games
A classic but amazingly challenging hidden object game by Games-Online-Zone.com. You are at the fair and your goal is to find and buy statuettes and lanterns as well as to take part in the fair contest - to spot differences between two pictures. Have a lot of fun playing this free game.
Archer Game

Plays: 1850
Category: Strategy Games
Have you ever fancied being a ranger like those fantasy characters you love so much? Well, now you can in Archer! Pick up a bow and a quiver full of arrows and get shooting! Don’t worry you won’t be shooting at anything alive or moving. This addictive free online hunting game has you blasting arrows at targets in many fun and interesting ways. Forget traditional archery ranges, because you’ll be shooting your way past obstacles, and using physics based gameplay to hit those targets. You can use the power of your shot to slam through objects blocking the way and hit your target, all in one fell swoop. To control your shot you must swipe your finger or drag the mouse across the screen to adjust the shot power, and then release once you’ve chosen the trajectory you want. There are multiple levels each with varying challenge difficulties that make for a seemingly endless stream of fun scenarios and results. The farther you progress in the game the harder and more challenging the levels become. The puzzles can be compared to other slingshot based games where you have to shoot a variety of birds at pigs – you know the one we’re talking about! If you find that you can’t reach a particular target, you can swap out to the bouncy arrows – one of many different ammunition types. What are you waiting for? Get out there and start shooting targets! Compare your scores with friends and family to see who can get the best. Don’t forget that this game can be played from any smartphone, tablet or computer. Choose your weapon of choice so to speak and aim for those targets! There’s a lot less to clean up when you’ve finished a game of archer too, and nobody likes to clean.
Abstract Defense Game

Plays: 1845
Category: Action Games
Abstract Defense is a challenging skill based action defense game, with simple and fun mechanics that requires fast response in order to survive as long as possible. Earn various achievements and go for the highest score!
Kolobok Game

Plays: 1833
Category: Action Games
Kolobok features 20 challenging levels a revolutionary platformer in which you can not jump. Roll, fly, freeze and burn Kolobok to reach the exit of each level. Eat the different mushrooms to get the special abilities. Enjoy the new gameplay mechanics and complete all the levels as quickly as you can. Play using the arrow or WASD keys.

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Tips: Weapon speed can be set to zero and it will effectively create a mine.