Tarzan Jungle Man

This is a clapping game for two and you start by singing:
Verse:

"Tarzan jungle man swinging form a rubber band
Fell down broke his crown
What color was his blood?"

Actions:
Clap your hands once then slap your knees once. Then the other person does the opposite, slapping knees and then clapping hands.
When your partner says "blood" at the end of the song whoever has their hands on their knees chooses a colour. You spell out the colour and then whoever has their hand on their knees puts one hand behind their back until one person has both hands behind their back.
The person remaining is the winner