The 3DS version includes technical modernizations and a previously "lost" event for international players:
The original Link Cable requirements are replaced with 3DS wireless communication , allowing for Link Trades and Link Battles with other 3DS Virtual Console versions of Gold, Silver, and Crystal. Pokemon Crystal Version 3DS (WORLD) CIA (VC-GBC)
As the "definitive" version of Generation II, Crystal introduced several firsts: The 3DS version includes technical modernizations and a
For the first time in North America and Europe, the GS Ball event is legitimately accessible without external hardware. located west of Olivine City
The first game where Pokémon have short animations when entering battle.
The very first appearance of the Battle Tower, located west of Olivine City, offering a series of high-level trainer challenges.