Any value in a 'Reset Self' button during testing (or maybe beyond)? Sometimes you want to try a different approach, or experiment with a part of the game from scratch again. The ability to 'reset' yourself outside of a normal game reset might be useful -- I know I'd use it from time to time.
I've played games before where a 'self reset' was part of the normal game play. For players who'd reached a reasonably high level they could opt to reset to the start and play again. Sometimes they could opt to take a special 'resetter' type stuff that conferred either 'non-game-advantage' coolness (like hidden wardrobe or vanity items, a trophy etc.).