Like the title says, what are some moments from games that made you say "HOLY CRAP!!!" or left you to pick up your jaw from wherever it landed on the floor?
I'll start with the one that inspired me to write this thread: while playing a fan-made game I shall not name, I was just wandering around the grass in of the routes when suddenly... *BAM* wild F***ING LATIOS! Needless to say, my jaw was instantly on the floor. I mean, I knew Latios was in this game, seeing as all Pokémon are (I think,) but I didn't know you could find it at the point that I found it at, with my highest level 'mon being a level 12 and without any in-game indication that it was there at all. Just... Holy crap.
Anyways, enough (shorter than usual) rambling from me, over to you next poster.