Using triggers without Rigidbodies?


I am curious if this is possible without making my own?

I am trying to save as much overhead as possible, although its a fairly small arcade type game so its not a bigger. At the moment I have rigid bodies on my enemies but ‘Is Kinematic’ is ticked, which only collides with triggers which is all I need them to do. However I am wondering if having a rigid body on this is unnecessary.

Thank you for your time.

Triggers need rigidbody