Spyro Shadow Legacy might, at first glance, just look like a GBA game that was ported to the DS, but with the graphics involved and its semi-regular use of the stylus, it is obvious that any attempt to put this game on a standard handheld would yield a very different, and somewhat lacking, experience.
Shadow Legacy starts off with Spyro's friends going off and away from the dragon island while our hero is forced to stay in school and start learning magic. There have been numerous Spyro games in the past that consisted of little more than just running around, gliding and charging into things. Fun as those games might have been, it is time for Spyro to learn a few more tricks.
Not only will Spyro learn some new attacks like the horn throw, but he will also have five different magic spells he will be able to use. These spells aren't really for attack or to be used in the heat of battle, but are typically used to move rocks or teleport to other areas you have visited.
Of course, Spyro's standard attacks are still there, and the platformer-based world in which Spyro has existed still seems to be present as you have to hit switches, jump, and glide your way around the world. Yes there is still a platformer element to it because there are plenty of times when you will have to jump across many different cliffs or pedestals.
So like I said above, Spyro's friends have left for the summer and Spyro is supposed to train with the elders. But not long after the ship sets sail, a massive dark energy is released and the portal to the Shadow Realm is opened. All of the dragons are sucked in and now it is up to Spyro to bring them back into the real world. But it isn't just the dragons that are in danger; Spyro soon finds out that his friends are trapped as well. Now Spyro will travel between the real world and the shadow world using ancient portals found throughout the game.
While in the Shadow Realm, Spyro's normal attacks (head-butting and fire) won't work, which is why our hero must learn new moves. As you gain experience and level up, you will be able to talk to the elders and learn new combos and magics.