World 1-2 - New Super Mario Bros
This is our Star Coin guide for World 1-2 in New Super Mario Brothers Wii. 1-2 is also home to an easy 1UP loop that I will point out. It can easily net you 5 Marios in a short period of time. This is an underground level.
Star Coin #1 - As soon as you go down the starting pipe the Star Coin is just ahead. Wait for the rocking rock formation to be at it's peak to jump up and get the Coin.
Star Coin #2 - You will come to the first Mario controlled girder in the game. You use the Wii Remote to rotate it on it's axis. Use this girder to get into the green pipe. There will be a sign below this girder pointing up. Once inside pop the 4 invisible bricks (2 to each side) and then pop the center brick to reveal a P-button. Hit The P-button to turn coins to bricks, and bricks to coins. Watch out for the lone Goomba. Then jump your way to the top to get the Star Coin.
1-UP Loop - Immediately on exiting the Star Coin you'll see a brick structure that only has a 1 brick high enterance and 4 coins in the middle. You need to run, slide under the entrance and then ground pound the bottom wall out. If you are small at this point the Midway Flag, with it's auto large Mario, is just up the level a bit. Grab it and comeback. Now that you have broken through the lower area hit the far right brick to release a Star. Now just blaze through the level killing everything and if you get all the Goombas, Koopas, and Piranha Plants on the way you'll get 5 Lives. You can exit the level and come back and do it as often as you like.
Star Coin #3 - You'll come to section with 2 Piranha Plants on each side and a big brick structure blocking a pipe. You can see the Star Coin below. Ground pound the bricks and enter the green pipe. In the lower section grab the POW block and throw it to release the Star Coin.