Sute Sute Railroading includes several methods of play (Simple, Regular, or Advanced), a few variants, and rules for a bonus game. The rules include the designer's typical sense of humor, with tie breaking rules related to how many of the designer's games you own and a prohibition on asking them when a certain one of their designs will finally be released.
The "Simple" rule set seems to be identical to their 2010 release, Sute Sute Marketing.
The "Regular" rules involve playing cards to a network of cards on the table. A player earns money equal to the increase in value of a train's network. The player then draws 2 cards. When the deck is exhausted, scores are calculated. The player with the most cards ("shares") of a company in their hand receives money equal to the company's value (stations); the player with the second most shares takes each share which belonged to to the player with the most shares.
After each company's accounts have been settled, players earn 1 yen for each card they have, and the player with the most money wins.