World 6-3 (New Super Mario Bros. 2)

Star Coins

 * Star Coin 1: This coin is on top of an extending magenta mushroom platform, but covered in Brick Blocks. The player must use the nearby Red Koopa Troopa shell to get rid of the bricks that block that star coin.
 * Star Coin 2: When the player sees the second Fire Bro., he/she must enter the yellow pipe to take him/her to a secret room with two Fire Bros. and the star coin.
 * Star Coin 3: Before the exit, the player must run on the brick block ceiling instead of the lower magenta mushroom platforms to find a hidden path to the third Star Coin.