From Bulbapedia, the community-driven Pokémon encyclopedia.
These Pokémon require 1,059,860 experience points to reach level 100.
A glitch in Generations I and II caused them to immediately level up from Level 1 to Level 100 if they received less than 54 experience points. However, this only affected those whose total experience was 0 prior to gaining the Exp. Points.
Pages in category "Pokémon in the Medium Slow experience group"
The following 189 pages are in this category, out of 189 total.