Particle Collions & Selective Array Actions?

1 - Top-down shooter, similar to what one gets following the Beginner's guide.. But I am trying to use Particles rather than a sprite as a projectile.

Is there a way to apply collision testing on particle Within C2? (I can do it by hand outside but I'm trying to stay within C2 to see how far I can stretch it)

2 - In the same game, enemy objects are spawned by in-game processes, and clearly added to an array. But how can I apply actions to only Some members of that array within C2? (eg. a random value to determine 3 possible actions, checked for Each instance of the object / tick)

I want to say, I am rather enjoying Construct 2.   I have been writing games since Turbo Assembler was still the language of choice, and watched things evolve over the years... but to see it reach this point, is simply amazing.

Only way I know to have particles that can test for collision is making your own particles instead of using the C2 plugin. So, is the same to have a regular projectile.

Regarding the second question I dont think I understand what you are trying to do. Maybe I need some sleep...

I was tied up for quite some time, and just got back around to trying out C2.

The 2nd part of what I was asking was how to create Separate actions for entities in an array.

Say I spawn a new enemy every 10 seconds, and n enemies have now appeared.

I want to step through the array and randomly determine Each of their actions rather than applying one action to all of them.