There are few things that I am willing to buy immediately — Portal 2, the VVVVVV soundtrack, half price Ben & Jerry’s, a cling film dispenser — even Steam sales have trouble seducing me into their vortexes of spending. Well, add something else to that swelling list of insta-buys: XOC’s rendition of the Super Mario Bros. 3 soundtrack. I saw it, I bought it.