Yes that's right one of the extras on the substance disc allows you to
control Snake on a skateboard a la "Tony Hawks", or "Evolution
Skateboarding" to be precise. Kojima-san has allowed Snake to be
included as a secret character in Konami's forthcoming skating game
Evolution Skateboarding. As a trade the game engine form Evolution
Skateboarding will be incorporated into some of the levels of Snake
Tales in MGS2: Substance.
FIRST PERSON MODE:
THE RETURN OF MERYL SIVLVERBUGH:
MGS2 you could only aim, shoot and scan your surroundings in first
person mode. In MGS2:Substance you can walk while shooting in first
Kojima has stated in interviews that extra characters will appear in snake
ALRIGHT ON THE NIGHT:
of the popular features in the original game was being able to play through
the game with a different costume such as a tuxedo. This feature will return
for MGS2:S allowing you to play with Snake in the tuxedo pictured and
his original suite from the first game.
Humour of SOL will carry over to Substance, evident in the
final scene of the trailer. It showed Raiden opening a door only for the
handle to come off in his hands. Looking around sheepishly, he proceeds to
screw it back on and continues as if nothing has happened.