First-prize winner in the 2003 Nokia Developer Challenge. Clear your calendar and take the phone off the hook -- once you get submerged in Bubbletris, it may be a long time before you come up for air. Connect three or more bubbles of the same color to make them pop. The more you pop, the more you score. As the bubbles float blissfully upwards, move them left and right, or flip them horizontally and vertically. As they reach the top, unpopped color bubbles will cause the space behind them to fill with clear bubbles. Popping color bubbles will cause clear bubbles just behind them to pop too. Pop enough clear and color bubbles to advance to the next level. You'll face the subtle strategy of letting enough bubbles form to help you advance levels, without allowing so many to form that you have no escape! Special bonus bubbles contain letters. Pop bonus bubbles before the letter disappears to capture the letter, and spell complete words to award mega bonus points or receive a surprise! All the while, a delightfully animated menagerie of aquarium fish swims in the background, immune to your muttered curses and frantic stabs at the keypad. Oxygen anyone?