Play Ben 10 - Protector Of Earth (EU) Online
You start as regular Ben, then transform into aliens like Four Arms to smash enemies or XLR8 to dash past obstacles—each one feels overpowered in the best way. The levels mix brawling with some light puzzle-solving, and Vilgax battles get deliciously messy.

Ben 10: Protector of Earth for the Nintendo DS came out in 2007, developed by High Voltage Software. It was one of those licensed games that felt right at home on the handheld, a straightforward action title you could pick up and play in short bursts. It didn't try to reinvent the wheel, just delivered a solid Ben 10 experience right when the show was really popular.
You control Ben Tennyson, running through side-scrolling levels to stop a new alien threat. The main goal is to fight through waves of enemies, solve simple environmental puzzles, and take down bosses. The core mechanic is using the Omnitrix to transform into different aliens, each with unique abilities; Four Arms is for heavy combat, XLR8 for speed, and others for specific obstacles. The pacing is quick, with a moderate difficulty that spikes during boss fights, requiring you to learn their patterns. It feels satisfying to switch forms on the fly and plow through everything in your path.

Download Ben 10 - Protector Of Earth (EU) ROM
You can download this ROM to play Ben 10 - Protector Of Earth (EU) offline using an Nintendo DS (NDS) emulator (Top Emulators).
*This ROM is provided for backup and educational purposes only.