**Requires Red RAM Expansion Pack to work on N64*** Pokemon Stadium Kaizo is a ROM hack of the original Pokémon Stadium with increased difficulty. It significantly revamps the game by giving all opposing trainers improved AI, stronger teams, better movesets (often based on Smogon strategies), and boosted stats. While the challenge increases dramatically, the hack also provides the player with a much-improved and powerful selection of rental Pokémon to use. They have better movesets and stats, and the prevolutions of most Pokemon have been replaced by final stage evolutions with different movesets. All 151 Pokémon can be recorded in Hall of Fame from Rental Pokémon alone. You’ll need to reach Round 2 in order to achieve this. Only certain cups have certain Pokémon provided, so you have to visit many of them. You can still use continues in the Stadium Cups, but you cannot do so in Gym Leader Castle.