By Margaret Lyons
Updated April 06, 2010 at 06:05 PM EDT

Dr. Horrible’s Sing-Along Blog is the nerd gift that keeps on giving: Sure, it’s almost two years old at this point, but the fan videos just keep coming. (Recall the epic fan-made prequel.) This 8-bit movie from Doctor Octoroc is brain-searingly excellent:

Just when I thought those songs couldn’t get any catchier…[via]

Previously: Dr. Horrible’s Sing-Along Blog: An Oral History