Knight Squad

For this achievement you have to get the boomerang power-up and have it swing around for a little bit when you throw it. Playing against a second controller with no bots makes this very easy, you just have to pick a map with enough space. Here is a video guide for the achievement.

This is solutions for everybody who doesn't have second controller.

Okey so at first go to local game and choose these settings:
- Bots difficulty - Easy
- Game mode - Capture the flag
- Time - 5:00
- Level - Ruined Palace

After start game You have to destroy all walls - to do this pick up twice bow (arrow symbol) to get bow max level. Then you can destroy all walls so easy. After destroy all walls go to the corner (there where you started) and wait for boomerang symbol and as fast as you can pick up this (because bots can pick up this too). Then press keeping A and go around while boomerang is around you. Bots are killing enemies so usually they shouldn't trouble you but if enemies come to You try to kill they with use boomerang. You have to keep boomerang around through 10 seconds.

With this way this is pretty easy. That won't take You a lot of time.

I hope I'm helpful

Cheerz,
LoKo6264

Just take a boomerang, throw it, and spin it 10s avoiding it when it comes back. We must first destroy the walls to have space.
Here is a method to unlock this achievement with a second controller. Start a game with these settings:
- Difficulty Bots: Disabled
- Game mode: Capture the flag
- Time: 5:00
- Level: First Flag
Note: In this video, I made the boomerang spin much more than necessary.