The "2" in the title suggests it is a sequel or a significant update to an earlier "Hypnotism" application. Broadly speaking, these applications fall into two categories:
While the term "Hypnotism 2 PSP" is rooted in homebrew, the concept of hypnosis also made its way into an officially licensed PSP game. Sega's 2007 puzzle game, , is a prime example. Hypnotism 2 Psp
The game was announced in August 2009 and released later that fall. The "2" in the title suggests it is