The KABOOM Game

Miaomiao's favourite game as a kitten
was hide-and-seek

Pepper's was fetch

And Momo has his own special game too,
and the name is quite special.

It's name is "KA BOOM!!"

Basically what you have to do
is to hide behind something,
and keep calling his name
until he comes over to you

At this time you put your hands out
like in "Dragonball",
at the same time saying "KA BOOM!!"

Note that you do not have to shout,
a soft ka boom with the dragonball hands
is enough to send Momo flying off into the air

After he jumps high backwards in response to "KA BOOM!"
he comes back for another round of the dragonball hands

I suspect that he is slightly masochistic somewhat
For those who are planning to look up the dictionary,
here is the meaning (in context)
gratification gained from pain, deprivation, degradation etc
imposed or inflicted upon oneself,
either as a result of one's own action or the actions of others,
especially the tendency to seek this form of gratification

He just likes to get scared and fly off into the air.