How are your reflexes? Put them to test in Slope. This classic endless runner will have you carefully navigating a ball through an ever-increasingly difficult course of obstacles. The longer you go, the faster things get. The game may be simple to play, using nothing more than your left and right directional arrows. However, the further you get into the game, the harder things get. You will need split-second timing if you want to overcome the challenge. It doesn't help that the game is different each time you play it. This means that it relies on skill, rather than memorization of the course. This game is addictive.