Chaos Wars is a PS2 Strategy RPG by Idea Factory that was just recently released in North America and probably would have gone under the radar but for it getting nailed by sites like Kotaku for having some of the worst in-game voice acting since the 90's. Check it out:
You've gotta love it when not only is the quality of the vocal track is so low that you can hear a distinct change and distortion in the overall volume of the audio itself whenever somebody speaks, but the voice actors can't even match their pitch and tone to the context of the scene nor pronounce simple words like Summon and Mountain nor not rush their sentences awkwardly, nor even appear to give a damn. To top it off the voices are so miscast to the characters appearances and the script so bizarrely matched to the vocal track and what is happening on screen that one has to wonder if it wasn't deliberate in someway.