Batman Crazy Runner - Super Runner In Bat-Cape
The gameplay itself is pretty modest as all you have is just a Caped Crusader who's running alone on a moving platforms with the gaps in between so he must jump occasionally to avoid falling through. Rules are also very simple and very strict: it takes just one wrong move, one space bar pressed too soon, and your super runner is dead.
Do I have to mention that batarangs he collects while running are totally worthless in respect to the game's goal which is only to run the longest distance and nothing beside that really.

All in all, I won't judge you if you decide to simply press the space bar and jump over to a next game during the first minute of play. Oh, and the background... I know that it's completely legit to reuse the code or certain algorithms or even small graphics from other games, but ... Halloween? Really?