Heroes of Mana/Walkthrough

Chapter 1: Raid on Splendor's Wings
Introduction to characters/storyline. Primarily characters talking to one another. You don't really do much in this chapter.

Chapter 2: In the Forest of Beasts
Basic introduction to the game mechanics. Tutorials for building facilities, summoning gathering and ground units, gathering resources, and basic combat. Follow the tutorials and you should be fine.

Chapter 3: Stirrings in Lowenburg
To Win: Lead Roget to the Gates of Lowenburg!

You lose if: Roget is killed, or the ship is sunk

More tutorials, but you have more freedom to move. Get started gathering and building your forces and you should have little trouble with this mission.

Chapter 4: The Moon Howls Over Mintas
To Win: Eliminate all Peddan troups!

You Lose if: Roget is killed, or the ship is sunk. Gauser is incapacitated. All of the villagers are killed. The Eagle ship is sunk.

There's a lot more to this mission than the previous chapters, but you're still going to see a tutorial or two. You won't have much trouble with this one if you get started quickly and keep your units together (except for the rabites, just keep them gathering resources).

When advancing into town to save the villagers, you may want to keep some units behind with the Beastmen's ship to defend them, but don't overextend yourself. Even if you take all of your units into town it's still possible to bring them back to the ship when needed.