OK for the Owl, dodge the falling rocks and avoid stepping into one its nests. After the rocks fall, the Owl will come out of one of its nest. This is the only time it can be hurt. Do this by forcing the Owl into one of its exploding eggs. The attack is successful when the Owl flashes red. Let the Owl rest in its nest, repeat the process about 2 more times. The Owl flies counter-clockwise. Oh, and avoid stepping into the nests again once defeating the Owl. *lol*
my only complaint about this game is the whole click to reload. would prefer some sort of "hit 'this key' to reload" option. of course there's also auto-reload...but that's cheap, and this game doesn't need it...lol.
instead of rushing through jumps, take your time and be patient. breaking 350 shouldn't be a problem. for additional help, search keywords: escape ian brock. There's a video of someone breaking 700+ which helped me out a lot in figuring out the pace of the jumps.
You shouldn't have to. All treasure should be available to get at any point in the game.