How to pass floor 17 on 100 floors?
The secret to getting past floor 17 in 100 floors is to look at the horizontal lines in the windows, and back wall.
If you look from the top to the bottom, you'll see that there is 1 line on the left, then 2 lines on the right, then 3 lines on the left, then 2 lines on the right.
These are the hints that tell you which ways to tilt your iPhone (or iPod Touch, or iPad): Tilt it left once, then right twice, then left three times, then right twice, that's it.
Anyone that enjoyed Dooors is likely to have a lot of fun with 100 Floors, it's a very similar concept of game. It's available at Apple's App Store, and it's free.