Mystery Gift: Difference between revisions

Due to the way the [[Pseudorandom number generation in Pokémon|pseudorandom number generator]] in Pokémon Stadium 2 works, the random numbers used for Mystery Gift selection fall into a cycle of 256 values (none repeating).<ref>[https://projectpokemon.org/home/forums/topic/63867-pokemon-stadium-2-mystery-gift-mechanisms/ projectpokemon - Why Tentacool Doll and Pikachu Bed are unobtainable]</ref> This essentially means that numbers after the first are not random: they cannot have their full range of possible values. Since decorations are checked immediately after items, decorations are also dependent on the value that was used when starting the item check. As a consequence, some items or decorations above may have rates slightly higher than their ideal rates (if all numbers were truly random); this most strongly affects uncommon items and decorations. It also affects two decorations that should be obtainable but are not.