How to get Devastator achievement in few seconds with ease

Easy way to get Devastator achievement.

Main

Devastation takes all objects on screen (except the boss), so:

1. Take Swarmer and Devastation
   
2. Start standard game
   
3. Collect bullets around you about few seconds
   
4. Use Devastation skill

You'll get combo with 50+, Devastator achievement and a lot of XP. Fall down and repeat if you need more XP.