If you do not want to get a robot kit from Japan and assemble one yourself, Hammacher has you covered with the Robonova-1.

The Robonova-1 is an advanced programmable robot that can walk, run, kick, stand on one leg, turn cartwheels, lie down, pick itself back up, turn a flip, do push-ups and dance right out of the box. Watch the video to see the Robonova-1 in action.

The acrobatic Robonova-1 sells for $1,199.95 on Hammacher Schlemmer.

The humanoid robot is controlled by 16 digital servomotors.
The rechargeable 5-cell NiMH battery operates for 45 minutes and recharges in about one hour.
The Robonova-1 robot measures 12" H x 6" W x 3" D.