Ten question marks/Obtaining ??????????/Level-up method

A GameShark code can be used to quickly level-up a Pokémon in 's Pokémon Day Care. If any Pokémon is placed into the Pokémon Day Care before the code is activated, after walking around for a short time, the Pokémon in the Pokémon Day Care will produce an Egg all by itself. The Egg will soon hatch into a level 0 ??????????; however, ?????????? requires 1,000,000 EXP points to reach level 1, making it tedious to level up without using a.

If ?????????? is traded to, it can be left in the Pokémon Day Care and will instantly grow to level 100. At this point, it can learn any of the eight HM moves via HM and will be safe for the game unless its summary is looked at. If given Rare Candies, it will start rapidly learning, even if the player refuses to teach it. This can be fixed by activating the "access fly map" GameShark code. ??????????'s National Pokédex number can vary, ranging from 0 to over 386, depending on its hexadecimal identifier. If the hexadecimal identifier number is over 1000, then a ? mark replaces the hundreds' column (e.g. ?24).