I can still remember I almost, and that is real close to smacking my PS3 controller on the floor when trying to get the Big Boss emblem on MGS4. Took me almost over 30 tries in the motorbike chase scene and 2 hours of reloading my save file when fighting Screaming Mantis. For all that's worth, I'm able to get the emblem. But thinking back on how I managed to survive those scene really make me impress on myself. On a second I even thought that is someone else!