Ghostrunner

Select level 15 in the menu.
We add an element to our modification that allows us to accumulate energy without even doing anything. We are waiting for the full scale and readiness of the Splash.
And now we enter the laboratory, where we first need to run along the wall and ride on the ropes.
We land on a platform with mesh walls, along which spider-explosives begin to run.

We wait until there are a lot of them under our feet, activate the skill and attack with it. I managed to minus everyone. If you don't succeed the first time, then the checkpoint is right next to the spiders.

It's easy to take in a place where a huge crowd of self-killing clones is crawling towards you. There you can also make other trophies for simultaneous kills.