Valley Ghost House

Head right, get the power-up from the '?' block, and jump over the gap to collect the first Dragon Coin. Continue right over gaps, avoiding the green bubbles, until you reach a door.

Enter the door to a new area. Hit the block above you to make a P-Switch fall, then activate it and grab the falling Starman. Run right, collect a Dragon Coin near the top, and proceed to the door at the end.

Go left to the end of this section to get another Dragon Coin. Return to the door you just passed to go back to the previous area.

Back at the P-Switch, activate it again. Use a cape to fly up to a higher platform to find a Dragon Coin (this is the hardest to get).

Return to the P-Switch area. Activate the P-Switch and go right. Ignore the Starman and run quickly to a passage with coins and doors.

Reach the end of this passage to find the fifth and final Dragon Coin and a 1-Up Green Mushroom. Enter the fifth door.

Inside this room, activate the P-Switch and grab the Dragon Coin on the right. Wait for the P-Switch effect to wear off, then continue right to the door to return to the previous area.

To find the exit: Hit the block above to make the P-Switch fall and activate it. Ignore the falling Starman and run right over the gaps to a passage with coins and doors.

Run to the fourth door from the left. Entering this door leads to the level's exit. The other doors lead to pointless areas.

For the secret exit: After activating the P-Switch in the second area, ignore the Starman and run right over the gaps to the passage with coins and doors. Run to the very end where a 1-Up Green Mushroom and a door await.

Enter this last door. Grab the P-Switch in front of you and travel over the used blocks to the other side, then go right and through the floor. Drop the P-Switch here.

Drop down to the right and hit the '?' block to create a trail of coins. The Key and Keyhole are at the top right corner.

Activate the P-Switch to travel up the coin trail. Use the D-Pad to control the coin trail, making it go up one or two blocks, then left, up, and right, letting it go up occasionally. Watch out for Boos to the right.

Before activating the P-Switch, ensure you are small Mario (hit a Boo to reduce your size) to fit into a hole at the top.

Activate the P-Switch, go up the coin trail, enter the hole, and use the Key and Keyhole to unlock the secret exit.