RNC with the hooks in would be my choice in this fantasy world.

But only the red blocks. They are fire elemental. The blue ones are water, so they actually sooth your pain.

PL

What about the yellow ones?

The yellow ones represent Earth, they are neutral in this case.

And then there are the White and Black ones. The Law of Ikaruga states that, if the guy is black, use White ones, if he is white, use Black ones. That way, they'll do double damage.

PL

Hmmm....well, regardless of colour, Lego doesn't discriminate because it equally hurts like a sonofabitch when you step on it.

Thumb to the eye, followed by knee to groin. Only if I have no choice.

Lego would work, too. I hate stepping on that ****.

BWAhahaha. Awesome.

Okay, I guess it depends on range of opponent.
Arms length: heel kick to knee/instep/groin, follow-through elbow to nosebone.
Very close (face to face): Headbutt, follow-thru elbow to nosebone (if applicable)
Behind: Back kick to knee, follow-thru spinning hammer-fist (if applicable)
Beside: Rising Elbow to nose, follow-thru Side kick or Uppercut (if applicable)

Above: Sho-ryu-ken, follow-thru Tetsu-maki-senpuu-kyaku (if applicable)

A frontal lobotomy.

Position before submission.

kick him in the back

Flying Triangle

Hmmm....well, regardless of colour, Lego doesn't discriminate because it equally hurts like a sonofabitch when you step on it.

Only to the RPG ignorant. A master of RPG can easily position himself to fall only on the blue legos of whatever his skin color is. That way, he takes minimal damage.

PL

knife hand to his solar pexus (with other arm chambered and loud kiai)

I would throw a smokebomb onto the ground, do a triple-backflip to clear some space, then throw some shuriken.

Then kill all witnesses, so my ninja identity would be secure.