I do recall this game, actually, and if I'm not mistaken it pays homage to a number of games from the time period and before. If memory serves me correctly, I believe there's even a level in the first episode that give a wink and a nod Super Mario Bros. 2
(USA) and its opening into World 1-1.
Edit: Just downloaded the old game and fired it up in DosBox. Indeed, I found the level that mimics parts of Super Mario Bros. 2
's World 1-1. On the first episode, when you enter the main from the main screen, take the elevator on the right all the way to the bottom, then walk all the way to the left. You should see another elevator and five doors: three doors on the left, and two on the right. Take the bottom door on the right and it'll take you to the level in question.
Edited by rockman_x_2002, Mon Jan 16, 2012 12:08 AM.