* In HeartGold and SoulSilver, during the battle that takes place within the Goldenrod Tunnel, if Silver has Quilava, his entire team is two levels higher than if he had Meganium or Feraligatr. This is to compensate for the fact that Silver's Quilava isn't fully evolved during this battle, unlike his Meganium and Feraligatr. This starter-dependent level change does not occur in the original Gold and Silver.
* Silver is the only rival who's team does not change in accordance to his starter; he will always have a Sneasel, Gastly/Haunter/Gengar, Zubat/Golbat/Crobat, Magnemite/Magneton and Kadabra/Alakazam.
** He is also the only Rival of the main series to
use types that do not round out along with his starter (such as an alternate Grass, Water and Fire type), possibly due to Silver's desire for "tough" and "strong" Pokémon, and thus have a variety of Pokémon he would deem "tough".