If the intros are in Bink format (like most games) it should be possible to make zero-second replacements with The RAD Video Tools. This usually works for any game where deleting doesn't work. Has someone tried this? I don't have the game to test it myself.
Topic on Talk:Metal Gear Rising: Revengeance
The games are .usm (Scaleform, IIRC), so the same should be possible, just with other tools. I have one "dummy" file I use for Sonic & Allstars racing Transformed, so I might try.
SO FAR: the "movies_ui" folder doesn't hold any logos movie. But I've managed to kill the menu background, so it might work :P
Nop. I don't believe it's on video :(
EDIT: Just unpacked the "data000.cpk", the logos are all there. You can use QuickBMS (http://www.mediafire.com/?3o3sbjtvtg8vz68, from http://info.sonicretro.org/SCHG:Sonic_Generations#QuickBMS) to un/pack those files.