Just Add Water’s vector-styled shooter Gravity Crash will make the jump to PSP on July 20 with a host of gameplay enhancements and changes, Sony announced today. A PSN effort, the Thrust-inspired title pays homage to arcade classics of old with its 2D perspective and straightforward pacing mechanics. Players are tasked with guiding a spacecraft through intertwining caverns in the far-reaching depths of outer space.

Headlining the exhaustive list of additions is a Survivor game mode, in which players set out to collect as many “gems” as possible within a predefined time limit under varying difficulty settings. Also included is an optional anti-gravity ship exclusive to the PSP release.

Catch a full breakdown of what’s in store after the jump, courtesy of JAW CEO Stewart Gilray.

* We’ve added a third ship. An anti-gravity ship. When playing, if you let go of the analog stick you will no longer plunge to your death.
* We’ve increased the number of special weapon slots from 3 to 5.
* We’ve added a lot more weapon pickups throughout the levels.
* We’ve made the Primary Objectives more recognizable on the radar (via BIG FLASHING DOTS).
* We originally used the old-school concept of three lives, then Game Over. We have now removed that; if you get Game Over, you can start from where you left off.
* We completely re-wrote the “paint” aspect of the editor, to make it faster and cleverer in relation to holes.
* We’ve added a new game mode, Survivor mode, where you have an ever-decreasing time limit, but an ever increasing difficulty level, in which to collect 10 gems.
* We’ve also unlocked the hidden game Gold Grabber, which was only unlocked by completing the game on the PS3 version.

Coming Soon to PSN: Gravity Crash Portable for PSP [PS Blog]

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