The Ultimate Sonic Flash Game is a nicely done spin off of the famous Sonic the Hedgehog series. What's great about this game, is that you can actually choose between: Sonic, Tails, Knuckles, and even Cream. The levels are lively and full of the classic rings and enemies you'd expect from any Sonic game. Using the arrow keys to move and the space bar to jump, Sonic must complete each stage while collecting as many rings and other goodies along the way. You can also pull off a powerful Spin-Dash by holding down, pressing the space bar, and then releasing the down key. One thing about Ultimate Sonic Flash is that it really plays just like a full video game with end of the level bonuses and what have you. I have to say this flash game had some serious time and effort put into it.

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Play even more Flash Games
Cubefield 2 Cubefield 2
See how far you can get by navigating your way through the ever dangerous cubefield. You score points for every second you survive!
Fantastic Contraption Fantastic Contraption
Build your very own contraption and see if you can somehow make it go so that it reaches the red goal zone. It will require some serious ingenuity on your part and it won't always be fantastic.
Tetris Tetris
The classic puzzle game of Tetris has been rewritten in flash and you can play it here. Flip the pieces using the arrow keys and score points by completing lines. See if you can beat my personal record of 208 lines!
Worlds Hardest Game Worlds Hardest Game
It's the Worlds Hardest Game ever!! Or is it?! Move your little red square as you make your way through a labrynth of difficult puzzles all while avoiding deadly blue balls. Wow that sounded bad.
Worlds Hardest Game 2 Worlds Hardest Game 2
Just when you thought a game couldn't possibly be harder than the Worlds Hardest Game, they come out with the Worlds Hardest Game 2. More complex stages await as you collect the yellow coins and avoid the blue balls.
Starball Starball
Starball is a great remake of the classic arcade game Breakout. Using your platform as a paddle and a special star ball, eliminate the grid of blocks above you while scoring points and gaining powerups.
Hexxagon Hexxagon
If you liked Othello, then you'll love Hexxagon. It's a strategy/puzzle game that takes place on a Hexagonal board. Capture your opponents hexxes by moving your own adjacent to them but be sure to protect yourself too.