How do you beat level 22 in doors for iPhone

Level 22 of Dooors is tricky because there's no hint for where to start, and you need an item that's hidden in a not-very-obvious place to get started.

Tap the first full sized light brown floor panel on the left to open up a hidden compartment, there you will find a magnifying glass; tap it to place it in your inventory.

Next tap the magnifying glass in your inventory to make it your active tool. Look at the tiger on the right and you'll notice a small horseshoe shaped tattoo on the right side of its back. Tap there to use a the magnifying glass to see what the tattoo is.

Once magnified you'll see a series of objects in black and white that in real life are of a specific color, you need to tap the buttons to match those colors:

From left to right, in a clockwise circle, it's green, yellow, red, yellow, purple, and red, leaving only the big hole at the top of the door which is an orange. Tap the orange ball in your inventory and tap the hole, that will complete the series and allow you to progress.

Once you've finished Dooors, try playing 100 Floors, it's the hottest new game in Apple App Store, and game play is just like that of Dooors: solving puzzles to advance to each next level. 100 Floors is free and currently has 55 levels to which the developers are adding new levels as quickly as they can.