Start new game, go up to the door, punch the white button on the door, go back to the start and fall down the hole, get the key and exit the building. You'll see a gate, but first take the lower-left road and pick up the shurikens, go back to the gate and open it with the key. Make sure you have all your lives and shurikens. Now, this is the tricky part:On the next screen with the river and a boat, enable the shurikens, stand right below the big bush, you need to be at the top edge between the gray and green floor where you can't go any further and position your character just between the middle and right part of the bush (you character's head should almost be touching the top of the screen). Now make your your character face the tree and the 2 small bushes on the top-left and throw your shurikens (the shurikens should pass just between the middle and top part of the right bush). When you have 1 shurilen left, a sound should be heard. If you don't hear a sound, restart the game and try again.Now, if you heard the sound, walk left to the river and kill yourself 6 times. After the game over screen, you should get the message "Isn't that lucky" and the instructions to skip levels. Start a new game and press Select to skip levels or the A & B buttons to change screens.