Aside from releasing its brand new game, Graviton Block, Neotko Studios has released a new major update to its debut iOS game, NumberOne Brain.

The new update to the numerically inclined reaction game introduces a new Survival mode.

In this new mode, you have only five seconds to tap each correct number. Make a single mistake and it’s already game over. What’s more, after a number of correct taps, the pieces are going to change to challenge you further.

Check out the video below for a brief look at the new Survival mode.

If you can’t see the video embedded above, please click here.

Note that you can play Survival mode only after unlocking all of the other modes in the game (including Hard, Enigma, and Chaos) or buying any paid mode via in-app purchase.

The new version of NumberOne Brain also offers recording of statistics. Just tap Menu followed by Statistics to view your progress in the game.

Also included in the update are better access to options, disabling of “grading,” and fixes to high scores.

Compatible with iPhone, iPod touch, and iPad running iOS 4.3 or later, the new version of NumberOne Brain is available now in the App Store for free.

The aforementioned, and similarly universal, Graviton Block is also available now in the App Store for free. Check back later here on AppAdvice for Sean’s review of the game.