How can I add a different animation if the action is repeated?

I’m trying to make a plane that catches fire if it hits the wall once but if it hits it a second time it wil explodehow can i change the particle system from fire to an explosion if it hits twice.
Thank you

Instead of changing the particle system, I recommend just deactivating the fire particle system (by dragging off of it and adding the “Deactivate” node), and then using “Spawn Emitter At Location” at your actor’s location to make the explosion.