Canabalt with seizures!
Once I actually got the hang of it it was pretty fun. To everybody who's giving it a 1 before they learn how to play the game: enemies are to be dodged, don't jump on their heads. When the top and bottom bars are the same color, there's a gap you have to jump. Hold right/d to sprint and likewise hold left/a to slow down. Jump while sprinting to long jump, jump while slow running to quickly hop. Use the hop and the long jump to get past multiple obstacles in a row or places where enemies are tightly packed with small gaps in between. This game's mechanics are well designed and work. I got close to 2,000 once. You all just aren't trying. Yes the graphics hurt your eyes but they're meant to be disorienting.