Ultimate Briefcase is an action-packed game developed by Nitrome for the iPhone. In this game, you find yourself in a city under attack by automated doomsday machines. Your survival depends on your dodging skills and a range of ridiculous special moves.

Unlock a cast of unique characters, each with their own upgradable special abilities, as you navigate different areas of the city, including fiery alleys and treacherous trapdoors. Collect coins and unlock new items to help you survive longer.

One interesting aspect of Ultimate Briefcase is the inclusion of a story. By collecting security footage, you can piece together the mystery of where the machines came from and what the Ultimate Briefcase holds. The game offers a variety of challenges and the items you unlock have a real effect on gameplay.

Please note that this game contains third-party advertising, which can be removed with a one-time in-app purchase. Additionally, you can collect coins within the game for free or purchase them with real money.