If you owned a PSP and loved Kamen Rider, this was likely your most-played cartridge. Climax Heroes OOO is the title that defined the series on the handheld. It moved away from the stiff mechanics of early PS2 games and introduced a fluid, accessible 2.5D fighting system.

| Feature | Climax Heroes Series | Battride War Series | | :--- | :--- | :--- | | | 480x272 (native) | 480x272 (scaled down) | | Frame Rate | Stable 30 FPS | Unstable 20–30 FPS (Battride War II better optimized) | | Controls | Face buttons + shoulder buttons | Analog stick + face buttons | | Load Times | 5–10 seconds (UMD) | 15–25 seconds (UMD) | | Multiplayer | Ad-hoc 2P (Climax Heroes OOO/Fourze only) | Ad-hoc 2P co-op (Battride War II only) | | Save Data | 80–120 KB | 300–500 KB |