How to get hidden exit 1: Beat Exit 4 and then press the doorbell 5 times quickly.
How to get hidden exit 2: Go to Exit 12 and hold the button until you beat the level AND the hidden exit card drops.
How to get hidden exit 3: Beat Exit 17 and keep waiting (don't touch or move your phone/device).
How to get hidden exit 4: Beat Exit 20 and wait a little bit until you see the hidden exit card on the TV.
How to get hidden exit 5: Beat Exit 21 then move the rings back to the original spot on the far right and a hidden exit card will drop.
How to get hidden exit 6: Beat Exit 25, then go backwards back to the beginning and the hidden exit card will drop.
How to get hidden exit 7: Go to the menu and go to select level. Scroll all the way left and you'll see it. From the level 1-20 menu, drag the screen all the way to the right and hold it there until you get hidden exit 7.
How to get hidden exit 8: Beat Exit 33 then press the same buttons to beat it again and the hidden exit card will drop.
How to get hidden exit 9: Beat Exit 34 and continue to do the same thing to beat it again and the hidden exit card will drop.
How to get hidden exit 10: Beat Exit 41 then press the card that you just put into the slot at the top to unlock hidden exit 10.
How to get hidden exit 11: Finish Exit 57 and wait a little bit until the hidden exit card drops.