A modified read-only memory image for the Game Boy Advance, when combined with a program that introduces elements of chance into the gameplay, allows for a different experience than the original game. Elements such as the starting Pokmon, the abilities of encountered Pokmon, or the items available in shops can be altered from their original programming. One might, for instance, encounter a rare Pokmon much earlier in the game than intended, or find that a typically weak move becomes incredibly powerful.
This approach to gameplay provides replayability for established games. The element of surprise and the need to adapt to unexpected situations introduce new challenges for veteran players. The availability of these tools offers a means for customization, allowing players to tailor the game to their preferences or create unique scenarios. This phenomenon has become especially prevalent within online communities of dedicated gamers.
