The goal is to guide the rubber duck to the end of the game in littlest amount of takes as possible.
Listen to the Rub-a-Dub music, jump over deadly ice spikes and jump onto blocks. One tap on the screen to jump, hold your tap to keep jumping.
There are several achievements and scores you can gain from playing the game.
Rub-a-Dub supports the OpenFeint social gaming network with Leaderboards and Achievements.