Tomb Raider 2 PC Cheats

PCBlow yourself up:
Hold walk then go forward, backward, turn around 3 times, release walk and jump forward. Boom.
All weapons:
Ignite a flare, then step forward, step backward, turn around 3 times, and jump backward
Level Skip:
Ignite a flare, then step forward, step backward, turn around 3 times, and jump forward.

Thanks to Revolution readers Treeweaver and Jaguar!