How do you complete the challenge "Can't have enough Ram"?

Solution 1:

You can only get this challenge by using Sam B's Tackle skill.

From the wiki:

  • 25 enemies need to be rammed at level one.
  • 50 enemies need to be rammed at level two.
  • 250 enemies need to be rammed at level three.
  • 500 enemies need to be rammed at level four.

Here is a youtube video for demonstration: