His name consists of haku, which means 'white' and ryuu, which means 'dragon'. If this is connected, it means 'white dragon', which is also a reference to his keshin Seijuu Shining Dragon.
He got Mixi Maxed with Shokatsu Koumei in the Raimei version of the Chrono Stone game.
His dub name, Bailong, is probably named after the Bailong river in China, which means White Dragon, which is another reference to his Keshin.
Hakuryuu and Taiyou are similar in some ways.
Both of them are the captains and they can use Keshin Drawing.
In their matches against Raimon, Tenma's Keshin Majin Pegasus evolved into Majin Pegasus Arc and Matei Gryphon was used.
In Chrono Stone, they both share the same Mixi Max, Shokatsu Koumei.
Navigation