Gallantmon Crimson Mode

Gallantmon Crimson Mode is a fictional character in the Digimon series. He is the advanced form of Gallantmon, empowered by asborbing the data of Grani. He appeared because Gallantmon needed to change his mode but he needed power for that. He found that power in Grani. He is known as Dukemon Crimson Mode in the Japanese version.

Digimon Tamers
Gallantmon Crimson Mode first appears in the end of episode 49 of the Digimon Tamers TV-series. He Digivolves from Gallantmon when Grani gives her data to him so that he gets stronger.

Runaway Digimon Express
In the movies Gallantmon Crimson Mode appears when Gallantmon and the other Mega Digimon fight against the Parasimon and when it appears that they will be defeated Takato (who has merged with Guilmon) refuses to give up. This causes a mode change in Gallantmon and the now more powerful Digimon destroyed all the Parasimon by sealing up the hole that they came through.