But there was a catch. Mugen had programmed the game to adapt to the player's skill level, making it increasingly difficult to progress. Some said that if you could beat Eternal Mode, you'd unlock the secrets of Mugen themselves.
However, as time went on, Mugen's game began to attract attention from the corporate gaming world. Big-name publishers and developers took notice of the game's popularity and began to pressure Mugen into selling out, or at least, incorporating their characters and IP into the game. Mugen Unblocked
Mugen refused.