Boot Snake Games‘s radical puzzle title, Containment: The Zombie Puzzler [$4.99], has just been updated with a new survival level and several smaller tweaks including an improved user interface for Survival mode. “The new free Survival level is 10 blocks long and takes place in Franklin graveyard," Boot Snakes tells us. And since it’s half the size of a normal romp, Boot Snake figures it’ll cater to the on-the-go crowd much better.

That new Survival mode UI, by the way, incorporates “improved Win / Loss" score screens and general score persistence. The other notable tweaks include performance boosts for the original iPad.

If you haven’t seen Containment yet, you totally should get to it. It has some fun takes on the usual match-game formula, but it also delivers story content in an incredible new age kind of way. We think you’ll dig it.