Super Mario 64 DS/The Secret of Battle Fort

Battle Fort is accessible only after you unlock a hero with a cap, since Yoshi cannot break the red bricks blocking the entrance. This stage is found in the courtyard.

Battle Fort is filled with Big Steelies that will knock you down, Goombas to get in your way, Bob-ombs that drop from the sky, Heave Hos to fling you incredibly high, and a Chuckya that will chuck you to somewhere in the stage, where you could get hit by a Big Steely.

In order to get the star here, you will need to track down the five silver stars. One is in plain sight, two are hidden by Goombas, and two are hidden in Brick Blocks. The only thing you can do here is punch them all out and see what they contain. The touchscreen map is very useful here, so keep an eye on it as you run around.