In Banjo Tooie the big fish that serves as the boss in the Jolly Roger Lagoon level. At the time I stupidly thought it would be the easiest jiggy ever(as the jiggy just hangs there before you initially) but boy was I wrong I swam closer and *BAM* that giant freaky fish appeared I ran from the room and promptly wet myself. But then I went back and fought him as the submarine and torpedoed his ass to hell and laughed while he was left hanging there upside down sans jiggy.
That aside exploring the other vaults and my first run in with a Deathclaw in Fallout 3 were quite frightening.
That aside exploring the other vaults and my first run in with a Deathclaw in Fallout 3 were quite frightening.