Relies too much on graphics
First off all, let me say that the graphics are excellent! they are. Unfortunatly most of the rest isn't...
The controls are standard though the running mechanism is stupid. Because you start to run automatically after a while, It makes everything much harder, i had to stop pressing now and then so i could succesfully hit the right ladder, or avoid jumping right into an enemy.
The weapon system (grenade or sword) is also quite useless, i only experienced one spot where grenades was actually useful, and that was quite far from the dispenser. Grenades should really be an accessory.
The sounds and music... wow... when promoting for a walk-man (a music player) you should think that it would contain varied and funky tunes that alone makes you want to play. No such luck, there's ony looped music that isn't too annoying the first level, but becomes really tedious after a while. The sounds are completely... not there...
Really man, You blew it when using this as promotion for a walk-man, relying too much on graphics, and too little on everything else. The game simply wasn't walk-man-ish... and so i don't think this helped any for Sony's sale.
I gotta admit, i liked the whole music underworld thingy, though.