You have to understand the frequencies (numbers) on the wall. Each one matches to a certain piano key. Also, if you listen closely the tune should be familiar.
Press the keys in this order: right middle left middle right right right left middle middle right middle left. See related link below for screenshots.
press the green arrow
Using the letters on the door, select the name of the game : Spell out 100 FLOORS See related link below for screenshots.
code: 03150405. See related link below for screenshots.
You complete 100 floors in the (Muggenjo)
58% of 100 = 58/100 x 100 = 58
58% of 100 = 58% * 100 = 0.58 * 100 = 58
Check the related link for a video guide on how to complete the 6th level on 100 floors.
Turn your volume down to nothing. The elevator doors will open when it is silent.
code: 03150405. See related link below for screenshots.
Expressed as a percentage, 58/100 x 100 = 58 percent.
Turn the volume all the way down. See related link for screenshots.
Press 1, 6, 4, 3. See related link for screenshots.