Unlock NY Subway Level:
To unlock the NY Subway Level, get every single Tape in the THPS1 Career levels.
Unlock Officer Dick:
To unlock Officer Dick, beat the THPS2 Career Mode with 100% on all levels with any skater (besides the created skater).
To unlock Spider-Man, beat the THPS2 Career Mode with 100% on all levels with a created skater.
Unlock THPS1 Career:
To unlock the original Tony Hawk Career mode, get a Gold Medal in the Tampa Bay competition in the THPS2X Career mode.
Unlock THPS2X Career:
To unlock the Tony Hawk 2X levels, get Gold Medals in all three competitions in the THPS2 Career mode.