Zerooo: free point scoring puzzle app for iphone, ipad

Zerooo is a fast game. The object is to tap on the 1, 3 & 7 until the big number gets to zerooo. The game ends when time has expired, or you over subtracted into negative territory.


There's a time limit: when you succeed, you get a few more seconds.  My high score is 19.


The problem with this game is that for every game, the 1, 3 & 7 never change.

https://itunes.apple.com/us/app/zerooo/id1025725719?mt=8