Edgar Wright: The Definitive Guide To Homages, Influences And References
Scott Pilgrim vs The World (whose title references the 1991 NES game Bart Simpson Vs The World) - sets its stall out early by having an 8-bit music track and an 8-bit Universal logo, implying the golden era of consoles and telling the viewer theyre in for a film with a heavy amount of classic game references. 
Of course, theyre not wrong Scotts world references regular videogame tropes at every available opportunity, with fighting game-style moves, enemies who explode into coins, levelling up mechanics, life bars and at the end, an arcade-style continue screen. When these effects needed a voice, that voice was Superbads Bill Hader. 