Twin Snakes so far has been very good, its rather different to the original in some aspects like being able do things from Sons of Liberty but the same in others, so far the areas have been exactly the same only of course with kick arse graphics, but i'm not really too far into it so i can't say the whole game is exactly the same, many of the cut-scenes are different and there seems to be an addition of matrix-like cinematics with bullet dodging and slow-mo martial arts and stuff (only in the cut-scenes mind you), its generally harder than the original too, i've had a couple of control issues tho which i've found to be the only thing really 'wrong' with it, its strange playing it with a gamecube pad so when i want to run and dive i press the wrong button and fire my gun alerting the bloody army that runs in from nowhere :d