Firework burning - expert advice needed!

Hi all,

I can do the basics on Storyline, but I want to create something more advanced for a teacher who needs the following:

Firework game for anger

The concept would be a fireworks spark wire getting longer and longer every time something makes the students angry. The game to look like a firework, and for students to add around 6 suggestions (each in separate boxes) to what makes them angry. Each time they add a suggestion, the spark wire gets longer. When they fill in all 6 boxes, the firework explodes.

All I have is an image of a firework and sparks (taken from a previous thread on fireworks!) - hence why I'm asking for some expert advice here!

Thanks so much,

Ruth