Wow I had never noticed there were so many o_o. Even from better known games like DQ and Mario Bros. As for Star Bowling, the part where contestants select their position definitely sounds resemblant to the underground theme, but still quite different. My guess is that if it actually is, it must be from an arrangement album, but I haven't listened to many Mario albums so I can't tell you for sure.
Great recopilation of tests, by the way. Did I mention this is one of the best shows ever made?
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My old Stepmania simfiles:
here and
here
MAH BOI, this peace is what all true warriors strive for!!