Second boss took me a bit too, since there's that HUGE BRIDGE and the boss is on the OTHER SIDE but there's a little tiny stone bridge off to the left of that bridgeAtmey wrote:
I beat the first boss in Shadow of the Colossus, then spent the next 15 minutes wandering around. Trying to reach the next boss, then I said WTF am I doing and turned it off. Sometimes I regret that, but riding poorly controlled horse for a long time is boring.
also horse confused me at first, but it handles almost exactly like a car. Left turns left, right turns right, tap X a couple times then hold it to drive forward.