By clicking on the picture below you will be redirected to Cin Wilkinson's game Comparing People. The game is divided into two parts. In the first part, you will be comparing Bob, Homer and Alice and you only have to choose the correct comparative form.
In the second part you will be comparing Harry, Garfield and Sponge Bob, but you will have to add three missing words in the sentence: verb, comparative and preposition.
When you have finished, click on DONE to see how well you have done and check your answers.
H/T to The English you Need.