Punk Goes 8 Bit is an awesome little project done by Florida based 'Pinhead Records'. In the "level 2" edition they've included Green Day's "86" off Insomniac, have a listen below.
You can purchase this song or the album on Bandcamp.
Other bands included range from AFI, Operation Ivy, Lagwagon, Anti-Flag, and Screeching Weasel. Go check out the full album on Bandcamp.
You can follow the project on Pinhead Records Facebook page. They've just announced that "level 3" will be out November 5th.