River City Girls 2

This is a achievement you unlock by progressing the story and is pretty straight forward.

In order to unlock the gate at the graveyard (which is covered in enchanted vines) you need to talk to the skeleton in front of the gate. He asks you to collect 6 ghost peppers. The first location is highlighted on the map with an exclamation point.

Take the bus at the camping site located just 2 screens down and one right. It'll take you straight to the first location. The red ghost peppers fly around. Hit them 2 times to knock them out. Use Y to throw them in the trap that's located in the first location. Catch both, take the trap with you and move screen to the right. Repeat two times. Then take the bus back to the camp site and talk to the skeleton again. Hit the vines to destroy them. It wil pop the cheevo.