If you have young children and you are afraid they might be too little, squeaky or fidgety to go to the theatre, then this is the show for you.
There is so much going on in this wonderful event for kids that it is absolutely impossible to get bored. And, although I didn't have a test child with me, I reckon it is not the kind of excitement that leaves kids hyped-up and awkward but will just make them beam with happiness all day long.
List Operators are Matt Kelly and Richard Higgins, a couple of very, very silly grown-up men from Australia who promise in the programme that their show will not be educational. They wear shorts and vests and lots of extremely silly costumes, and they have a giant cardboard computer in the middle of the stage.
Pretending to explain about computers while asking lots of questions and offering lots of choices, Kelly and Higgins give the youngsters in the audience plenty of chance to feel involved with the show.
They are mischievous without being manic. And, while there is plenty of haring around and daft jokes, they never, ever talk down to their audience.
It is one of my pet hates to see people cut corners on kids' shows but this is absolutely bursting with imagination and ideas. There is an alien invasion, a princess riding on a unicorn, a lemonade explosion and a water pistol fight.
And it is very, very, very funny. I laughed my head off and when I paused for breath I heard the lovely sound of happy children giggling, laughing and wriggling with joy and excitement. The show is recommended for five to 12-year-olds but I think a four-year-old could manage it, while an older brother or sister with a silly sense of humour would enjoy it too.
Despite the promised lack of instruction, this show teaches children that the theatre can be a wonderful and exciting place. If your kids have never been to the theatre before, do them a favour and make this their first experience. It's something they will never forget.
Now, where can I borrow a child to give me an excuse to go to watch it again?
• Pleasance courtyard (venue 33)