Installing custom save data on the PSP is surprisingly simple, but you must follow the folder structure exactly. Here is the definitive method:
The game’s namesake feature—Ultimate Aliens (evolved versions of Cannonbolt, Spider-Monkey, and Echo Echo)—requires specific combos and level progression. A standard playthrough only unlocks these forms near the very end of the game, leaving little time to actually enjoy them.
Unlock all aliens:
_C0 All Aliens
_L 0x200C2A10 0xFFFFFFFF
Add all power nodes:
_C0 Max Power Nodes
_L 0x200C2820 0x000003E7
Use CWCheat or TempAR on CFW.
Yes. If you have played through Ben 10: Ultimate Alien – Cosmic Destruction once, or if you are a returning fan who just wants to smash enemies as Ultimate Echo Echo without hunting for hidden artifacts, then downloading a 100% Ben 10: Ultimate Alien – Cosmic Destruction PSP save data is the best decision you can make.
It transforms the game from a tedious collect-a-thon into a chaotic, power-fantasy brawler. Just remember to back up your original save, match the region code, and download only from trusted communities like GameFAQs.
Now fire up that PSP, load up that save, and yell, "It's hero time!"—with every alien already on your wrist.
Have you found a working save file? Which Ultimate Alien is your favorite to main? Let us know in the comments below (but don't share direct links—keep it legal).
A 100% complete PSP save data file for Ben 10: Ultimate Alien – Cosmic Destruction typically unlocks all playable characters, levels, and maxes out alien upgrades. Key Features of 100% Save Data
All 16 Playable Aliens: Access to all standard and level-specific transformations.
Standard: Swampfire, Echo Echo, Humungousaur, Spidermonkey, Water Hazard, Armodrillo, Terraspin, NRG, AmpFibian, and Big Chill.
Level-Specific Ultimates: Ultimate versions of Swampfire, Spidermonkey, Big Chill, Echo Echo, and Humungousaur (available in specific boss/army encounters). Way Big: Unlocked for the final battle sequences.
Maxed Alien Upgrades: All alien forms have their speed, strength, defense, and special attacks fully upgraded.
Level Selection: All 8 story chapters are unlocked, from the Catacombs to the Final Battle.
Infinite Resources: Often includes "Deep Pockets" status with 1 million+ DNA cash for immediate upgrades or purchases. PSP-Specific Cheat Shortcuts ben 10 ultimate alien cosmic destruction psp save data
If you prefer to unlock these features manually without downloading a save file, you can enter these codes in the Cheats menu: Cheat Code levels Unlocks all story levels upgrade Maxes out all alien stats immediately cash Grants 1,000,000 DNA cash health Enables health regeneration energy Enables energy meter regeneration
Watch these guides for full walkthroughs and a complete look at all unlockables available in the game: Ben 10 Ultimate Alien: Cosmic Destruction - All Unlockables 6M views · 13 years ago YouTube · Pheonixmaster1
The fluorescent lights of the electronics repair shop hummed in a monotone drone that usually put Aris to sleep. But tonight, the shop was closed, and Aris was wide awake.
On his workbench sat a relic: a battered, coffee-stained PlayStation Portable (PSP) 3000. It had come in for a screen replacement, but the owner had never returned to claim it. That was three years ago.
Aris, feeling a wave of heavy nostalgia, decided to fire it up. He skipped the system menu and went straight to the memory stick. The icon was unmistakable—a green hourglass with a black silhouette. Ben 10: Ultimate Alien – Cosmic Destruction.
"Classic," Aris muttered, blowing dust off the D-pad.
He expected a clean start. He expected to hear the familiar theme song and start leveling up Swampfire from scratch. But when the game loaded, he didn't see the "New Game" prompt. Instead, he was dropped straight into a level select screen.
Every planet was unlocked. Every alien was available. Even the "Ultimate" forms—those powerful, evolved versions of the aliens—were highlighted in gold.
"Must be a save file the previous owner left behind," Aris reasoned. He checked the save data utility. The file name wasn't a date or a generic "Save 1." It was typed out in all caps: THE_LAST_SWAMPFIRE.
Curiosity piqued, Aris selected the file. The game loaded a level Aris didn't recognize. The setting wasn't the Tokyo or Paris levels he remembered from his childhood. It was a void—a glitching, static-filled arena. The HUD was gone. There was no health bar, no timer.
In the center of the screen stood Ben Tennyson, but he wasn't in his human form. He was Swampfire. But the colors were wrong. Instead of the usual orange and black, the alien was a dull, decaying grey.
Aris pressed the button to transform. Nothing happened. He tried to open the pause menu. The screen flashed red text: SYSTEM INTEGRATED. CANNOT PAUSE.
"Okay, this is a hacked ROM," Aris said, his thumb hovering over the power switch. "Definitely a hacked ROM."
He tried to power down the PSP. The console clicked, the green power light blinked, but the screen stayed on.
Suddenly, the text box at the bottom of the screen appeared. In the pixelated font of the game, it read: "I have been waiting for a player." Installing custom save data on the PSP is
Aris dropped the PSP onto the anti-static mat. He hadn’t touched a button. The console sat there, the green light pulsing like a heartbeat.
The grey Swampfire on screen shifted. It turned its 3D model directly toward the "camera," breaking the fourth wall.
"The data is corrupt," the text box read. "The developer set a challenge no one could beat. The Ultimate forms were a trap. You power up to save the world, but the cosmic destruction consumes you. I am what is left of the hero."
Aris watched, mesmerized. The character model began to glitch, its polygons stretching and tearing. The game was actually speaking to him through the limitations of 2010s software.
"There is one function left in the code. The 'Ultimate' command. It is hidden. Press L and R together."
Aris hesitated. He was a tech guy; he knew this was impossible. A save file couldn't rewrite the game's logic in real-time. Yet, the atmosphere was suffocating. The lights in his shop flickered in sync with the PSP screen.
He pressed L and R.
The speakers let out a screech—not a sound effect, but like the console was physically straining. On screen, Swampfire didn't evolve into Ultimate Swampfire. He dissolved. The grey pixels scattered like ash in a windstorm.
The screen faded to black.
Then, a new prompt appeared, one that didn't look like game text. It looked like command line code.
TRANSFER COMPLETE. MEMORY STICK SLOT 2.
Aris blinked. He looked at the side of the PSP. There was no second memory stick. Just the one.
Suddenly, the small "MagicGate" indicator light on the PSP began to flash rapidly. Aris watched as the save file icon on the main menu—the THE_LAST_SWAMPFIRE file—began to shrink. It was deleting itself. The kilobytes ticked down until the file was gone.
The console finally shut off.
Aris sat in the silence of his shop, the hum of the lights returning. He reached for the power button again, turning the PSP on. He went to the memory stick. Add all power nodes: _C0 Max Power Nodes
It was empty. No save data. No Cosmic Destruction. The game icon itself was gone.
He popped the UMD disc drive open to check the game disc.
It was empty.
Aris felt a chill run up his spine. He stood up and walked to the storage bin where he kept the unclaimed items. He rummaged through the pile, moving old controllers and tangled wires until he found the case the PSP had come in.
He opened the plastic clamshell case. The game manual was there, but where the disc should have sat, there was only a hole.
He looked back at the PSP on his desk. He had just been playing a game that hadn't been in the drive.
Aris sat down and stared at the blank screen. He picked up the console and navigated to the "Photo" section of the memory stick.
There was one new image, taken just seconds ago. It was a screenshot of the game screen he had just witnessed, but in the corner, in the reflection of Swampfire's visor, Aris could clearly see his own face, illuminated by the glow of the screen.
Under the photo, the caption read: "Ultimate Upgrade Applied."
Aris looked at his hand. For a split second, the skin seemed to shimmer, turning into green and black circuitry before fading back to flesh. He turned the PSP off, put it in a drawer, and locked it.
He never played a Ben 10 game again. And every time he looks in a mirror, he swears the reflection blinks a second too late.
Ben 10 Ultimate Alien: Cosmic Destruction , save data is essential for tracking your progress through global locations like Tokyo, Paris, and Rome as you hunt for Galvan artifacts. Managing your PSP save files allows you to bypass the grind and jump straight into high-level alien action. Where to Find 100% Save Data
Community contributors often provide "100% Complete" save files that include all upgrades, unlocked levels, and maximum health/energy meters. Popular repositories like the GameFAQs PSP Save Directory host files from users like aljunoftana , which feature: Maximized Stats : Full health and energy regeneration. Unlocked Content : All 8 story levels and all ultimate alien forms. Collectibles : Every Sumo Slammer card obtained. : All alien abilities fully leveled up using DNA cash. How to Install Save Data
To use a downloaded save file on your PSP or an emulator, follow these steps: Download and Extract : Save files are typically in format. Extract the folder (e.g.,