No Name Game
Though it has a silly name, I challenge anyone to actually finish even the first level and still return. This game is the most challening thing in a long long time.
Crazy Cars
Congratulations, you have won the lottery and have cashed your cheque in at the bank. But on the way to the ice-cream parlour to spend it all on chocolate sundies and banana splits the money bag falls out of the car window...NO!!! You have to drive back up the one way road to pick up all the money.