There is a couple of bugs that I have found on game.
* Eevee evolutions posterior to generation I are unlocked (you can evolve without using the required stones)
* The Pokémon Paras disappear after you unlock the Generation II (or the rate of finding him goes to nearly 0)
* Sometimes when you try to catch a Pokémon, when you throw the Pokeball, it goes upwards and it doesn't complete the animation process. (Nothing happens after that).