Nice quiz! One suggestion I would make is to be more lenient on the spelling of the players (e.g. accept just zigzag for zi8gzag, RC for Radu, and etc.) Also, shina is actually spelled "Shiina"
Thanks, I added more common abbreviations or names for the players. (The zi8gzag answer also includes zigzag, Anananah includes ananananananananananananananah and Radu includes RC.) (Also, Shina has been changed to Shiina)