Triple Transforming Piranha Bot
Triple Transforming Piranha Bot is a brick bot that has the ability to transform into 3 alternate modes (Submarine, Bot and Jet) in a few simple steps with no parts-swapping or disassembly needed. It can also be piloted by its own minifig.
Here's a video of it's transformation sequence:
I design it with playability in mind: it not only provides builders with fun in building the bricks but also in transforming it into various modes by simply moving its parts around. It is also designed to be highly articulated, so that builders can easily pose it in various poses and have fun playing it like an action figure.
I also paid attention in the design of it's silhoutte and facial features, so as to give an appealing personality to the robot. This is so that it does not just feel like a mechanical robot devoided of personality.