Tomb Raider 2 Cheats Codes
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Level Skip Code:
Press the Forward Slash key (/) so that Lara will draw a flare.
Now, walk one step forward, take one step backward, turn around
3 full times (doesn't matter which direction), and then jump forward. 

All Weapons Code:
Press the Forward Slash key (/) so that Lara will draw a flare.
Now, walk one step forward, take one step backward, turn around
3 full times (doesn't matter which direction), and then jump backward. 

Blow yourself up:
Hold walk then go one step forward, take one step backward, turn around
3 times (doesn't matter which direction), release walk and jump forward.
Boom.