Probably says a lot that I know I played a ton of MPH back in the day, but I couldn’t for the life of me remember what any of the characters look like.
I remember getting frustrated with the re-used assets, but as a teenager the other “hunters” were the coolest shit to me. The variations in powers and fighting styles were all very sleek, and when you encountered them in-game it was pretty scary. The local multiplayer was fun: I enjoyed playing the blue robotic one and chaining together an electric fence around opponents using their “ball” form.
When the DS first came out, it came with a demo for MPH that basically just sold me on the control scheme. It wasn’t ideal, but the sell of having keyboard and mouse-type accuracy on a handheld at the time was huge. (And the alternative, using a/b/x/y to look, was terrible)