Search gaming forums for custom HD texture packs made by the community to replace low-resolution UI elements and character models. Legacy of the Ultimate Ninja Series
The actual next chronological entry in the Japanese "Accel" series moved away from the PS2 entirely and launched on the PlayStation Portable (PSP).
If you’ve been digging through the darker corners of emulation forums or ROM sites, you’ve probably seen the title: for the PS2. The thumbnail looks cool. The screenshots look like they’re from the real games. And your first thought is, "How did I miss this one?"