How I can make my enemies do not fly that way so disastrous?

My Enemies have attached a Ridgibody, because I need it but, they fly, and I don’t wanna that.

http://www.juliancruz.net/runawayDemoUnity/

please help me !!

Thanks for your help!!!

It seems your enemies are too light, or your bullets too heavy. If you let the default “mass = 1” at both rigidbodies, something like you’ve described happens. Try to increase the enemy mass and decrease the bullet mass to reasonable values - enemy mass = 50, bullet mass = 0.1, for instance.