T.B Rika is a major character introduced in Otomedius Excellent.
Ms. Rika known as the homeroom teacher in St. Gradius Academy however she's a Bacterian as spy warrior to take down the angel squadrons as well as the Organization G itself. She's pilot of the Tri-Pod Core.
- Probably, or not, She's Chichibinta Rika, or a descendant, since her last name is Rika and her theme song is "The Final Enemy" that literally based from Parodius Series.
- Her Voice Actress Hitomi Harada is also shared the voice of Kokoro Belmont.
- Her Riding Core, Tripod Core is possible to be based an Original Alien Tripod from the 2005 film version of "War of the Worlds".
- T.B. Riks is the first villain character that shown her true identity to the squadrons during the began of boss battle.
- T.B. Rika is a scientist and a teacher of the St. Gradius High School (Anoa, Tron and Fuuma) but she has secretly joined the Bacterian Army as Spy Warrior and settled things up to destroy anything, even the Angel Squadrons.