This oversized LEGO chappy has a little surprise underfoot - an extremely useful LED light. Obviously that's not the norm for one of the bricky brethren, but it makes a lovely item for your keyring and, indeed, your pocket. All you need to do to make his tootsies sparkle is press the little LEGO logo (try saying it ten times quickly), and before you know it the lights will twinkle.
It's actually rather bright, too, so ideal for those nocturnal moments when the keyhole eludes you. Of course, being that he's something of a giant compared to most LEGO men, you could always crown him as some sort of Lego deity amongst your smaller figures and have him stomp around like Godzilla, but that's probably missing the point. He'll be far happier in your pocket and lighting your way home.