For reference, here is a full-resolution map of World 1-1 (open the image in a new tab for full resolution): [![World 1-1][1]][1]
(source: mariouniverse.com)
Note: At first glance, this may seem like a Kolmogorov complexity challenge on my given input.txt file. However, in reality the challenge is more complex than that because (a) the input.txt I provided is definitely not the shortest possible and (b) there has never been an attempt to create the shortest possible set of keypresses for SMB in this format. The 'fewest buttons possible' known TAS is different because it allows for holding of buttons for a long time, which would add length to the desired output in this challenge. [1]: https://i.sstatic.net/0CkEk.png