I was reading reviews of it online and found out that one of the many ways you can have the main character The Maw (basically a big alien that loves to eat) help you through levels is to eat something called a puff-tor that will allow him to inflate himself.
The game is available on the 360 arcade and while it's probably nothing spectacular in terms of inflation I thought it was worth a mention. The game itself if getting really solid reviews too, may check it out soon.
Hey, I noticed this...was considering downloading it.