Katana Is a recommended character who appeared in A-MAZE-ing Plan.
After the green side of Rubik's Cube accidently made the vacuums escape from the maze, one of the vacuums sucked up all the recommended characters except Rubik's Cube, Kitty, Paint Bucket, Sun, and Katana. Katana told the vacuum that it missed her.
- Katana is one of the three recommended characters who spoke. The other two are Rubik's Cube and Kitty.
- So far, Katana is the only speaking RC who is not voiced by her recommender.