Pyro as Bill said:
The train shoots cannonballs. "10:07: NEW ZELDA GAME BITCHES! Sequel to Phantom Hourglass on DS. Link is riding on a train! A train that shoots cannonballs! Legend of Zelda: Spirit Tracks is the name. Awesome." Source: http://blog.wired.com/games/2009/03/gdc-live-blog-n.html It's an ON RAILS SHOOTER |
It's not an on-rails shooter. Why else do you think they mentioned that bottom screen shows maps of dungeons? You don't need a freaking map if you're moving automatically.
This is just like the boat sections in Phantom Hourglass.