Hurdle idioms at kindergarten opening ceremony?

Hello, are there any idioms suitable for describing the hurdles scene at the kindergarten opening ceremony? Suitable idioms are as follows:

1. Step as fast as flying: describe running with vigorous steps and running fast.

2. Race to the top: refers to racing to be first and refusing to lag behind.

3. Fight against every second: It means that every minute and every second must be fought for. It can describe the way players seize the time when hurdling.