This is the 4th part of Bike Mania. Here are links to the previous parts:
This is one of those games where you need to pass obstacles on a bike accelerating and breaking with the up and down arrows and maintaining the balance with the left and right arrows. Nowadays there are hundreds of games like this, but Bike Mania was among the first ones of the kind. In this 4th part you have a micro bike and your obstacles are huge variants of the objects you normally have in an office..