BlocKage is a series of Sokoban style, logic-based small puzzle games made by Blue Wolf Games (has gone). You will be faced with dozens of brain challenging levels in each game, the goal is same - to adjust the state and move the colored boxes to the right place in order to fill all the gaps with corresponding colors.

Planarity is a small puzzle game inspired from the concept of planar graph in graph theory. Also a classic work long time ago, but it is still full of interesting and challenging even for now.

The Missile Game 3D is a minimalist obstacle-escape type of small flash game based on mouse-control only, which actually tests the players' memory ability, reaction speed and agility. It was developed by DX Interactive, whose popular work BLOXORZ you might have enjoyed.

G-Switch is a very cool anti-gravity based small flash game with parkour style, very exciting, addictive and rare to find. It tests the player's reaction speed, and the way it defeats players is to use the inertia of human action and thinking.

Atomic Puzzle is a series of small puzzle (eliminating type) games based on mathematical logic operations, created by Kongregate. In game your goal is to eliminate all the balls on the screen - none should be left, otherwise you have to start again.