As you progress to higher levels in your Cryptoku game, you'll encounter these hazards and special numbers.
|/tmp (temporary) numbers disappear after a few seconds, leaving an empty grid box.|
|Viruses infect other numbers around them.|
|Vaccines kill a virus. They don't affect any other number, and they don't persist once they land in a box.|
|Rotating Key: after a few seconds, the key number will swap its solution with another number in the grid.|
Reverse Numbers count backwards (9, 8, 7, etc).
Even/Odd Numbers count up (or down) by 2 digits at a time. So an Even number will go from 2, 4, 6, 8, then back to 2 again. Odd numbers go from 1, 3, 5, 7, 9, and back to 1. It is possible for a number to be both an Even/Odd and a Reverse number.
Speed means the numbers fall much faster than normal. This is the last hazard in both Crypto and Hack games.
You'll often encounter more than one hazard in one level.
|Number is correct|
|Number is off by one|
|Number is wrong|