Try out Borderline to put your reflexes to the test. It's a game in which you'll have to roll a ball bordering the line and dodging the obstacles.
Dodge obstacles at full speed
You'll move around very fast, which will make it much harder for you to overcome each difficult situation. In turn, you can compare your progress with that of other players that you'll face online. A real challenge that will measure your capacity of reaction.
A very entertaining challenge.
The game is never-ending and you'll play on level after level non-stop... that's if you manage to overcome all the difficulties on the way. All in all, a game with a simple approach that's worth having a go at.