Same here. Probably the last game that had me in true shock/awe upon seeing. Funny too, cuz the initial rumors of the cross over days/weeks before it happened, I was barely enthused at all for it to happen. Seeing it action blew my mind for a second. Too bad Capcom royally fukked up how they ultimately handled the game though. I still like it tho.
Before that, the only other games that had me in total awe upon seeing them was LittleBigPlanet, Devil May Cry, Grand Theft Auto 3, Metal Gear Solid, Final Fantasy VII, Tekken, Chrono Trigger, Street Fighter 2 and Super Mario World. All of these games however met and/or exceeded my expectations of them.