Tip for bonus levels

The concept of a "bonus level" is in the fact that acquiring the triforce warps you somewhere.

Essentially, you can make a room that cannot be entered in any way except getting a triforce. This room could be a one-time chance to get a piece of heart.

This room could have four buttons If you press the right button, you are insta-warped to an identical room with the buttons pushed and a piece of heart in the center. If you press the wrong button, all of the buttons appear pressed, but there is no piece of heart. A hint in the dungeon could be given as to which button. This method prevents using the lens of truth.

There are even more possibilities.

-Make the player fight an enemy (e.g. Death Darknut) If he dies, he is warped out of the bonus level. If he wins, he gets a piece of heart. The hint would tell players to be at their fighting best.
-Have a shop where you can buy the piece of heart for...500 rupees. The hint would tell players to have a lot of rupees.
-Require a side item that players don't have to have (e.g.Hookshot) to beat the game.

One problem, you can only have one wapr per screen. It could work another way. Make the identical room have 2 areas, one with, and one without the heart piece. Make it so you have a choice of which button to press. Make the button a pit warp and warp it to the second screen, one of the buttons has a heart piece on it.

Actually, just make two different rooms: the one with four unpressed buttons, and the one with the heart piece. Have the right button warp to the room with the heart piece, and the wrong buttons trigger secret combos to disable all of the buttons.