First Course (Gold Classics Pack)
From the Super Mario Wiki
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.