Erul Tron is a Gradian and Anoa's best friend and partner pilot. She is quite intelligent and enjoys studying Earth culture. She is a second-year student and attends to the same class as Anoa at St. Gradius Academy.
Her main homeland is Latis, a planet near Gradius which has been on friendly terms with it for a long time.
However, the real reason why she came to Earth was to look for her brother, the former pilot of Vixen, a Latian craft that disappeared time ago without leaving any trace.
Erul Tron pilots the Riding Viper version of the Lord British. She is another balanced character that is mostly focused on offense. Her Cyclone Laser, Ripple Laser and Twin Missile weapons are all for frontal attacks. Her four Multiples are very similar to Options, with the only change being that they have a 0.5 second delay in movement. Her Platonic Break is the Spread Sphere, with the attack firing twin plasma balls that spread out upon impact.
This is the first Otomedius character that her Platonic Break is different in a sequel.
"I'll think about it while listening to some rock music" is a reference to the Nemesis series, where James Burton said this line in Nemesis 2's ending (although that part is missing in the American version of the game).
Given her brother's connection to the ancient Vixen craft, it's possible that Erul's family are modern-day, direct descendants of the ace pilot David Burton.
Tron's DLC music themes are based from the Salamander series, with remixes of various iconic tracks, such as "Power of Anger", "Starfield", "Slash Fighter", "Silvery Wings Again", and many others.
The weapon that comes with the Pastel DLC costume is the Disruptor laser used by Lord British in Gradius Gaiden. The laser penetrates enemies as it did in that game and is decently powerful, although its shot delay is a bit longer here.
