Researched by: Vicioussama

The Official Site

Konami - Kojima Productions

Information Resources

Wikipedia - Psycho Mantis

MGS: The Unofficial Site

everything2

Results of CBUB User Discussions

Win against 3-D Man (58 to 50)
Lose against Psylocke (41 to 92)
Lose against Ermac (41 to 65)
Lose against Mewtwo (44 to 69)
Lose against Darth Vader (15 to 82)