Download Ben 10 - Ultimate Alien - Cosmic Destruction ROM – Sony PSP Game
Jump between alien forms mid-fight—Swampfire burns through bots while Spider-Monkey swings past collapsing ruins, all before that cosmic storm wipes out Tokyo. Feels like the show, just with more button-mashing.
Game Overview
Ben 10: Ultimate Alien: Cosmic Destruction came out in 2010 for the PlayStation Portable, developed by Papaya Studio and published by D3 Publisher. It was one of those late-era PSP games that tried to capture the feel of the show while working within the hardware's limits. The game doesn't push the system too hard, but it gets the job done with a decent mix of action and exploration.
You control Ben Tennyson, switching between his alien forms to fight enemies and solve environmental puzzles. The main goal is to stop a cosmic storm from destroying Earth, which involves traveling to different locations, battling villains, and collecting energy cores. Signature mechanics include switching aliens on the fly during combat to exploit enemy weaknesses, and using specific alien abilities like Big Chill's ice breath or Swampfire's plant manipulation to progress through levels. The pacing is fairly straightforward, with moderate difficulty that spikes during some boss fights. It feels like a solid, portable action game that stays true to the source material without overcomplicating things.

Download Ben 10 - Ultimate Alien - Cosmic Destruction Game
You can download this ROM to play Ben 10 - Ultimate Alien - Cosmic Destruction offline using an PlayStation Portable (PSP) emulator (Top Emulators).
*This ROM is provided for backup and educational purposes only.