level4:

Spoiler
just press button on first and last

level5:

Spoiler
on top of the exit there is a passage use the passage on floor pattern.

level6:

Spoiler
code:739339

level7:

Spoiler
push plank on the next floor make sure both colour are same eg: 1orange 2orange after that cross entrance u will notice have crossed exit push plank and change the right floor colour to none and go through exit.

level8:

Spoiler
pick all pearls and put them in this order:
1box: large
2box: medium
3box: huge
4box: tiny
5box: big
6box: of course small

level9:

Spoiler
code: 954271

level10:

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colour combination
topleft: green
topmedium: pink
topright: yellow
bottomleft: cyan
bottommedium: purple/voilet
bottomright:think yourself which colour is left, of course orange!

end:

Spoiler
disapointed the guy step on elvelator and disappeared