My son saw the great god playing the team, and it was "against the ground" (the son said, I don't know if it was these three words). He asked me what I meant, but I didn't.

You are a very good parent. When you meet children's problems, you can pretend to understand and come online with an open mind.

According to my understanding, it should be the performance of a weapon. I can think of the following possibilities, hoping to help you.

This is an anti-map gun.

Map gun is a powerful large-scale killing weapon, while anti-map gun is a weapon that ignores or even counteracts map gun.

antigravity

That is, gravity can be ignored, such as some flying devices, physical shells and so on.

Geomagnetic field

You can ignore the earth's magnetic field, such as an electromagnetic gun.

Anti-mine, anti-ambush or anti-ground-to-ground tactical ballistic missiles.

Both of them are ridiculous. Generally, it will not appear in children's works, but is listed as a possibility for the time being.