Shape and Colour matching:
Linkage games:
Hidden object:
Third person character control:
Single character control:
Multiple character control:
Construction:
Others:
... sides, getting <math>x^2+\frac{b}{a}x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}.</math> The left side is now a perfect square; it is the square of (x ...