Dragon Ball Z Tenkaichi Tag Team

[Henrik]

There is official support for running a PSP at 333Mhz, some games use it to get extra performance at the expense of battery life. As far as I know there's no way without custom firmware for the user to choose or to even see that it's happening though.

So it's very strange that the game displays this prompt. It should not be possible for it to be visible on an unmodified PSP.