fact of the day: This colossus is called "Sirius" Apart from fighting it while riding on Agro not much is known about this colossus. The art books gives little information except that it was scrapped because it didn't work very well in execution, 'the way to defeat it just wasn't turning out'. But it was obviously a fast moving colossus.This picture shows the Stonehenge type rocks we see at G7 in the game but with different surroundings. The caption under it reads 'Rocks meant to be used in the fight with Sirius', so perhaps you had it chase you between the rocks, Agro & Wander make it through the tight space but Sirius gets stuck! You dismount and attack it's weak point.
