LET'S all go Berserkus at the circus, say Cirque Berserk, a multinational troupe of 35 circus acts that move indoors for the winter with their tents until the next travelling season.

Backed by a West End creative team led by director Julius Green, choreographer Dede McGarrity and set designer, this new show was a roaring success on Wednesday and twice on Thursday.

That roar came from the criss-crossing Lucius team of daredevil stunt-riding motorcyclists, as they zipped around the Globe of Terror at speeds of up to 60 miles an hour.

The globe is a steel cage only four metres wide, in which “the world’s most dangerous circus act" go about their buzziness. They performed twice, as a twosome to close the first half and building up to a four in the show's climax.

At one point, when they were three, they were even joined by a young woman, standing still in the cage as they swarmed around her like wasps. A tap on the shoulder, and she was gone, replaced by the fourth bike.

Seeing is believing, and thanks to the unusual announcement that the taking of photographs was encouraged, mobile phone cameras were sending off photos to friends and family by the show's end: an enterprising variation on word of mouth as the best way to spread the message about a new show.

There were no animals, apart from a man in a horse's head pulling a mini-caravan; there was a clown, Tweedy from Scotland, with his juggling and unicycling and unfeasibly large and loose trousers.

There were Timbuktu Tumblers acrobats from Africa; Germaine, the foot juggler from France; Billy, the spark-firing robot from England; Tropicana Troupe, a springboard troupe from Cuba; and contortionist Odka from Mongolia, so flexible that she could fire an arrow with her foot. Bullseye!

In fact everything about this show hit the spot. You would be berserk to miss it, should it return to York.