Anybody play that old game called Flashback? Well, I found a copy of the game for the Mac, but for the life of me I can't figure out how to run, jump, and then hold on to a ledge on a level above; using the keyboard, of course. Does anybody remember how to do that? (BTW, you can find the game at http://mac.the-underdogs.org/ -- it still works in Classic, but set your screen to 256 colors otherwise it just quits without even an error message.) That would be great.