Today's update patch (v1.02) finally enabled you to purchase the "Rampant dodgems" rescue operation. It costs 1 USD / 103 JPY / 0.8 GBP / 1 EUR. If you tried to unlock the fourth rescue operation in Saviour Sammie before, you probably noticed that it didn't work. There was a problem that meant you couldn't pay for it.

Sony has closed the PSM program, so this will be the final update patch for PS Vita and PS TV. The game will only be available until the 10th of September. You can download it here.