Making enemies not collide with corpses

Is there an easy-ish way to do this? I’m making a wave defense game and so far everything is going good. The only problem is the enemies tend to walk in a straight line and when one of them dies, the others bunch up behind his corpse and can’t walk over/around it.

Yes! It’s called layer based collision, read up about it here. Just make your corpse prefabs be on one layer, your enemies be on another, and then make them not interact with each other!