New Super Mario Bros Wii Guide Walkthrough World 5-Jungle World
World 5-Ghost House
Grab the Light Block and carry it to the door at Point 1. Go through the door to access the next section of the Ghost House.
The door at Point 2 will send you back to the beginning.
Drop down the gap at Point 6 and make a left. Enter the door in the secret area to unlock an alternate path on the World 5 map leading to the cannon!