I think you could do a fair bit by following the priest and his soldiers that are chasing Wander more than the game did. He can provide exposition to the soldiers as they travel, seeing more and more pillars of light in the distance as they do so. Have some banter along the way to get us to like one or two or the soldiers as well. Play up this party’s protagonist energy.
In the meantime, let Wander talk to Dormin more. Dormin remains honest and helpful throughout the game, so I think you could easily add in concern for Wander and curioisity about why he’s doing what he is doing. “What a strange, fascinating little mortal. We do hope he knows what he’s doing.”
I suppose you could probably only show maybe three colossus fights max, including the ending. Picking which ones get done in full would be tough. First one almost certainly has to be on the list. I think the giant flying serpent in the desert is probably the best one visually, so that’d be my other pick
Oh, I was including what happens after the priest (whose name is Lord Emon, now that I have actually gone to check because I certainly didn’t remember) as one of the colossus battles. Just trying not to openly spoil a nearly 20-year-old game for some reason I guess. My concern is that the value of the colossus battles in the game comes largely in the form of puzzle-solving, something that won’t translate to film very easily. In the game, the fights don’t advance the narrative much. The deteriorating state of Wander and some of the environmental cues do, but neither of those require the actual fight to be shown in full. We need one fight to set up the nature and danger of Wander’s task, at least one more to make tangible that he has to do a bunch of these and they’re all differently dangerous, and the confrontation with Emon because that’s the conclusion to the story.
That’s a brilliant suggestion, that film was exactly what would be needed to adapt this game. I don’t have… well, much of any hope for the guy who is actually attached to it, but I suppose it’s unfair to judge him too hard before we have any idea of if or how it will actually happen