Virtual On: Oratorio Tangram Ver.5.66 Cheats - Xbox 360

Cheat Codes
To play as Prototype Temjin, beat Arcade with Temjin and input this code:

Highlight Temjin, hit [X]
Highlight Random, hit [X]
Highlight Raiden, hit [X] Twice
Highlight Bal-Bados, hit [X] Twice
Highlight Angelan, hit [X] Twice
Highlight Grys-Vok, hit [X] Thrice

To play as Prototype Raiden, beat Arcade with Raiden and input this code:

Highlight Apharmd B, hit [X]
Highlight Apharmd S, hit [X]
Highlight Dordray, hit [X] Twice
Highlight Specineff, hit [X] Twice
Highlight Fei-Yen, hit [X] Twice
Highlight Cypher, hit [X] Thrice

Note that while playing as Ver.5.2 Temjin and Raiden, you cannot airdash, double jump, or fire turbo weapons. They do increased damage, however.

SEGA Nostalgia
When loading up the game, hold the [A] button until the title screen. When it gets to "Presented by SEGA", instead of the voice saying that, it will say "SEGA" how it was back during the Genesis days.

Achievements
Complete each achievement to get the allotted gamerscore:

1 Ranked Match (10) - Played one ranked match.
10 Ranked Matches (20) - Played 10 ranked matches.
300 Hits (25) - Scored a total of 300 hits in Single Player or Multiplayer mode.
Bradtos (10) - Defeated Bradtos in Arcade mode.
Custom VR (10) - Used a customized VR in Single Player mode.
First Win (20) - Defeated an opponent in Single Player or Multiplayer mode.
Infight (25) - Scored a close-range attack in Single Player or Multiplayer mode.
Perfect (25) - Earn a PERFECT in a Single Player or Multiplayer match.
Rank In (15) - Uploaded a Score Attack score to rankings.
Tangram (10) - Defeated Tangram in Arcade mode. Letting time expire does not count as a win.
Vs. Ajim (20) - Battled Ajim (Ajim appears after winning repeatedly by letting time expire in Arcade mode.)
Watch a Game (10) - Watched one match.

Unlock Ajim
You need to encounter Ajim in Arcade mode to unlock him. He appears if you win a number of matches by time out. The round that Ajim appears in is random. (Note: You do not have to beat Ajim to unlock him).

Ajim - Encounter Ajim in Arcade Mode.