First Course (Gold Classics Pack)
From the Super Mario Wiki, the Mario encyclopedia
This course is heavily based on stages from Super Mario Bros. The main part of the level is a recreation of World 1-1, and the pipe that originally lead to the original level's bonus room now takes Mario to a replica of World 1-2. Also, the Warp Zone area found in the latter takes Mario to various bonus rooms from that game. A secret hole in the Warp Zone leads the player to a Super Mario Bros. Mario sprite made of Red Blocks, Empty Blocks and Wooden Blocks.