How do I set up the spikes to randomly fall?

I am following an older Construct 2 video series and I decided to tackle it to learn a bit more problem solving skills. But posting here I am showing I'm truly stuck.

I know there has to be a better way to do this.

Object: To get spikes to fall from off screen in a random pattern. My current event is not working.

Here is the project file, thanks ahead for the help!

https://drive.google.com/file/d/144_CLPjEvgM5BCWGALFIU1bKwua5n-GW/view?usp=sharing

The example — shared works fine. To destroy the spikes, you could do something like, "System Compare two Variables: Spike.Y > Greater than LayoutHeight" then "Destroy Spike"

Or simply, something like "Spike on collision with Bottom > Destroy Spike". If you don't mind them being destroyed on contact with the Bottom Sprite Object.

Might be cool to set the Vector Y to 0 on collision with Bottom, then System Wait for a bit, then destroy the Spike. So they stick into the Bottom for a bit, then get destroyed, fade out or whatever you want to do.

Just so you don't have a build up of spikes existing below the layout.

You got it, this was an easy one. Enjoy your weekend :)