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  Monster Buster A Free Online Game
Wonderland Paintball  A Free Online Game
Wonderland Paintball
Hungry Panda A Free Online Game
Hungry Panda
Derby Driver A Free Online Game
Derby Driver
Box Ninja Versus Box Ninjas A Free Online Game
Box Ninja Versus Box Ninjas
Doodle Car A Free Online Game
Doodle Car
Super Cat 2 A Free Online Game
Super Cat 2

Online challenging Games
Blackboard Typing Game

Plays: 2929
Category: Education Games
A fun typing game! Type out the correct spelling of each word. Higher levels get progressively more challenging. Have Fun!
Real Crisis Game

Plays: 2924
Category: Action Games
Have you ever wanted to save the world? Now you can! This is a challenging trail shooter game made with real footage and real people; I hope you'll enjoy it! N.B. The game size is 14 Mb, so please be patient while it loads!
Silentium Universi Game

Plays: 2920
Category: Action Games
A retro-inspired space shooter with a wide variety of enemies and challenging boss fights that culminate in an epic battle at the end. Obtain money by defeating your enemies and use it to improve all aspects of your ship!
Cirplosion Game

Plays: 2916
Category: Puzzles Games
Cirplosion is a skill/puzzle game where you create circles in the gaps between moving orbs. You have limited time and explosions on each of the 20 levels. Complete the challenges to unlock Cirvival mode. Some of the challenges are quite, um, challenging – good luck :)
Secrets of old hairdresser Game

Plays: 2916
Category: Puzzles Games
A classic but amazingly challenging hidden object game by Free-Online-World.com. The profession of hairdresser is not only very interesting but also very difficult. Help the old hairdresser to prepare to the job in this picturesque game.
Linx: Hard Levelset Game

Plays: 2913
Category: Puzzles Games
A unique logical game, where your objective is to connect all the same coloured bases with paths. The paths have a funky characteristic, that two paths of different colours cannot intersect. Add to it pits which can't hold paths on them, and you get a mixture of logical mayhem. This challenging levelset should push your brain cells to the limit and ensure your grey matter gets a good workout! Can you beat these most devious levels?
London Mahjong Game

Plays: 2912
Category: BoardGame Games
A classic but amazingly challenging mahjong game by Free-Hidden-Object.com. We are sure the game will be interesting both for the mahjong experts and for the novices who just discover the mahjong games . Find identical items and destroy them. But pay attention that the tiles should be unlocked:. no tile above-below or to the left-right.
Jennas Celebration Game

Plays: 2911
Category: BoardGame Games
A classic but amazingly challenging hidden object game by Online-Girl-Games.com. Jenna celebrated her birthday in the office last evening and now her goal is to clean the room until the boss comes to the work. Help her to do this as quickly as possible. Firstly, find all hidden objects from the list. Secondly, collect all negatives from the celebration and delete them. Thirdly, find the differences between two pictures to make the office look as it was before.
Snow Christmas Story Game

Plays: 2907
Category: Puzzles Games
This game is one of those few puzzle games that stays challenging and addictive without being too difficult. Solve puzzles, move the elements to burn off the line, go through the levels to score points.
Boundling Game

Plays: 2901
Category: Action Games
Boundling is an incredibly challenging game, packed with exciting levels, dangerous explosion patterns and tons of fun! Circumvent the system or get splattered in this fast paced game of skill and reflexes. How long will you survive?
New Year Story Puzzle Game

Plays: 2893
Category: Puzzles Games
This game is one of those few puzzle games that stays challenging and addictive without being too difficult. Solve puzzles, move the elements to burn off the line, go through the levels to score points.
Boom Boom Bloon Game

Plays: 2887
Category: Shooting Games
Rescue the good bloons and destroy the bad balloons grounded in this challenging test of aim and skill!
Trap World Game

Plays: 2883
Category: Adventure Games
Navigate through many obstacles and enemies to escape Trap World. A very addicting and challenging game that includes 15 levels that gradually get harder, 5 Boss Levels, and many Achievements.
Fruitazzle Lite Edition Game

Plays: 2879
Category: BoardGame Games
Make all the fruits on the board the same to win in Fruitazzle Lite Edition, a challenging puzzle game from nonSoft. This Lite Edition has a simplified rule set for slightly easier play.
Sapo Cururu Game

Plays: 2878
Category: Puzzles Games
Sapo Cururu is a logic game where the goal is to move through all the leaves of lily to go to the next level. This game has 30 levels extremely challenging to put your brain to function. See how long it takes you to go through all the levels.
The EZ Maze Game

Plays: 2874
Category: Puzzles Games
The EZ maze is not so easy as it seems. Play 10 challenging levels that will require lots of concentration to finish. Try not to cheat Ok?
Seven Game

Plays: 2871
Category: BoardGame Games
Drop boxes in a grid to create an exciting chain reaction effect in this challenging puzzle game. Features 3 game modes and infinite fun! In Seven, all you have to do is control the flow of blocks in order to get the best score. Click on a column to send a block to it, and experience the incredible and rewarding effect of a big chain reaction. Try to beat all levels in normal mode and get the best scores!
Red Fluxion Game

Plays: 2866
Category: Shooting Games
A challenging shoot-em-up bullet hell game with epic boss battles and many power ups Requires Flash Player 10!
The Mystic Way Game

Plays: 2861
Category: Action Games
Follow the Mystic Way across challenging rune mazes surrounding the rocks to clear each level. Find good items to help you in your mission and avoid the Dark Forces allies.
Neon Town Parking Game

Plays: 2861
Category: Driving Games
New and amazingly challenging parking game by Free-Game-Planet.com. The problem of parking will be even more topical in the future. Park your concept car on the right place. But be careful, do not touch other cars and static obstacles.

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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.