Here are some short videos showcasing some of Kodu's fabulous bots! These are objects that you can place in your world that can also be programmed to do all sorts of things, These videos feature most of the bots in the game that I would generally think of when you are going to use bots for player controlled movement. There are a number of other bots in the game though.
You are able to customize the color of these bots by choosing one of the 11 colors in Kodu's selectable color palette. I was hoping to be able to change the scale of our bots, but that feature is absent. Every time you place you a bot you can press X to access its settings menu. There you can modify its speed, bounciness,friction,how much damage it does with bullets, and a lot of other things.
You can cut and paste bots into your game world, as well as make clones of your bots. I'm not entirely sure what cloning does yet. You can also mark any bot or object as creatable. In Feed the Fishy I placed a creatable apple near each cannon. And then modified the cannon's programming to launch the created apple.