DeathSpank
12 Achievements
200
10-12h
Justice Dispenser
Kill 2500 Enemies
25
How to unlock the Justice Dispenser achievement in DeathSpank - Definitive Guide
I got this achievement about 75% through the game. If you are going for all the achievements then you should get this way before you finish the story. If you want to grind it out, though, the best place is probably in the haunted forest. Along the path in the middle of the map are a bunch of spiderlings. You can one hit them with just about anything so you can run through them quick.
If you press RB for equipment, then press it again to tab over to inventory, you can read your "book-o-stats" to see how many enemies you've killed. If you want to know your progress, that's where to look, for this, and other achievements (like the 50 side quests one)
Signal24Code20 left a comment saying that the chickens count as enemies, so if you want to lock this down early, you can simply kill all the chickens near the beginning and outhouse teleport to respawn them. Credit goes to him.
Alternativley, If you picked up/kept the repeating crossbow, running round killing stoopid chickens/varocious chicken will help boost your kill count too. But, as originally stated, I'd consider this natural progression and You should only consider grinding If you don't have it when you hit lv 20
This will most likely come over the course of playing. If by the end of the game the trophy has yet to pop, than just run around the different areas killing enemies until it does. After your 2500th enemy killed, the trophy will pop. You can see how many you've killed by using the Book O'Stats'N'Stuff in your inventory.
This will come naturally as well. Everything you can kill counts as an enemy, so kill away! You'll definitely reach this before the game is over since all areas respawn after a certain amount of time and you have to cross each area several times to get where you need to go and do what you need to do. If you want to know how many enemies you have killed so far, just go to the leaderboards in either the main menu or pause menu. When it's loaded up, press and you'll see your name pop up as well as the number of enemies you've killed thus far.