- In Giants, they are replaced with Inhuman Shields.
- The name was confirmed by Cali in Drill Sergeant's Heroic Challenge, where she mentioned that Mini Knights are guarding the keys you'll need.
- The red/yellow and Purple variants appear only on the Wii version while they appear in silver in the other versions.
- They have a robotic sound when the player is far away from them.
- They look similar to one of Ignitor's earlier concept design.