UltiMario
Out of Obscurity
Since Kanto and Johto were based two years apart, the Time Capsule thing was like a Time Machine from Kanto to Johto and back, it also served as the check to dissallow "undiscovered" Pokemon to that era.
Edit: Nobody knows that the Rock Capsule is. Its an event item, and its only role in your game is to be transferred, the Rock Capsule, game-text wise, is incredibly hard, quite possibly virtually indestructible, hence holding something worth keeping safe inside.
Edit: Nobody knows that the Rock Capsule is. Its an event item, and its only role in your game is to be transferred, the Rock Capsule, game-text wise, is incredibly hard, quite possibly virtually indestructible, hence holding something worth keeping safe inside.