An old and unfinished project from 2016. Use the arrow keys to move. Press space when touching the buried vegetables, and again to throw them. Don't touch the Shy Guy, throw vegetables at him instead. Walk to the very side of the level (before you enter the door) and you will appear on the opposite side.
Here is something you are probably wondering: Is this Super Mario Bros. 2??? Doki Doki Panic is a game that was later turned into Super Mario Bros. 2