You can shorten that. But the preparation wil be the same amount of work. And the event will not look that readable for the human eye
You could make make a family containing all the particles, with a family instance variable to identify them (id = score).
Then you can do it with two condition events and one action.
The condition event would contain:
- the Trigger once
- the Car is moving
- a system > compare two values, with in first value: right(str(score),1), and in de second value: "0"
One sub-event on that condition
- a system> pick by comparison with in first value: family.id, and in the second value: score
The action on that sub even would be
- spawn on center camera the object family on layer 3
- audio > play(by name) with audio file name: "hit_"&str(score)