Death Run 3D is a lightning-fast game meant solely for experienced experts. The appropriate game for you if you enjoy challenging games is this one. You float inside a tube filled with different blocks, practically all of which are movable. Avoiding them is your job. Because the distances between blocks are so close together, quick reactions are necessary for success. The game displays your score on the global scoreboard so you can repeatedly try to outperform yourself and other players from around the world. It's quite addictive.