Data accurate up to 2004
Mazakari
Rank: 996
Weight Class: 175lbs
Competed:
August - September 2000
4th wars
Mean Streak
Rank: 1000
Weight Class: 100kg
Competed:
August 2003
Mecha Bubo
Rank: 986
Weight Class: 120lbs
Competed:
July 2003
Mecha-Chu
Rank: 978
Weight Class: 60lbs
Competed:
April 2003 - August 2004
WCR Inaugural
MechaVore
Rank: 1047
Weight Class: 220lbs
Competed:
May 2001 - May 2002
4/5.0
Mechadon
Rank: 1012
Weight Class: 325lbs
Awards: 5
Competed:
August 1999 - June 2000
Mechadroid
Rank: 990
Weight Class: 100kg
Competed:
January 2002
Mechaniac
Rank: 984
Weight Class: 100kg
Competed:
August 2003
Folkestone 2004
Mechanical Advantage
Rank: 1000
Weight Class: 120lbs
Competed:
April 2003
Editor's Note:
I'm Reasonably sure from pictures (http://web.archive.org/web/20190808183859/http://www.angelfire.com/electronic2/cerberus/dmonic3gallery/dmonic3gallery.html) that mechanical advantage is the 2nd unidentifed robot that defenestrator fights, however they could be 2 seperate robots
Medulla Oblongata
Rank: 951
Weight Class: 60lbs
Competed:
August 2003 - September 2004
Rocket City Robot Assault
Medusa 2000
Rank: 994
Weight Class: 175lbs
Competed:
August - September 2000
4th wars
Mega Hurts
Rank: 988
Weight Class: 100kg
Competed:
July 1998 - August 2003
Mega-Hurts
Rank: 998
Weight Class: 100kg
Competed:
September 2001
xt1
Megabyte
Rank: 1187
Weight Class: 220lbs
Awards: 8
Competed:
May 2002 - October 2004
Meltdown
Rank: 988
Weight Class: 115lbs
Competed:
May 2001
3.0
Melvin
Rank: 1009
Weight Class: 11.3kg
Competed:
August 1996
Menace
Rank: 1000
Weight Class: 340lbs
Competed:
May 2002
Merbot
Rank: 1009
Weight Class: 120lbs
Awards: 1
Competed:
October 2002
Merlin
Rank: 1008
Weight Class: 100kg
Competed:
August 2003 - October 2004
Winter Tour 2004, Modified with a wider flipper
Merrimac
Rank: 987
Weight Class: 165lbs
Competed:
August 1995 - August 1996
1996
Meshuggah
Rank: 977
Weight Class: 100kg
Competed:
August 2001 - July 2002
Dutch Series 2
Mesmer 2
Rank: 998
Weight Class: 150g
Competed:
October 2002
Metal Fury
Rank: 1008
Weight Class: 120lbs
Awards: 1
Competed:
March 2002
MetalMuncher
Rank: 987
Weight Class: 340lbs
Competed:
May 2002
Metalhead
Rank: 988
Weight Class: 325lbs
Competed:
May 2001
3.0
Metalis
Rank: 994
Weight Class: 100kg
Competed:
August 2003
Metallithor
Rank: 988
Weight Class: 175lbs
Competed:
August 1997
Metalmorphis
Rank: 988
Weight Class: 220lbs
Competed:
October 2001
robotica 2
Methos
Rank: 988
Weight Class: 120lbs
Competed:
January 2002
Micro Mute
Rank: 988
Weight Class: 12kg
Competed:
June 2002 - August 2003
Micro frenZy
Rank: 988
Weight Class: 1lb
Competed:
May 2002
Editor's Note: Unsure if this is a newer or older version than the battleants one
MicroVore
Rank: 988
Weight Class: 120lbs
Competed:
November 2001
middleweight version of mechavore
Midevil
Rank: 1136
Weight Class: 390lbs
Awards: 6
Competed:
June 2001 - October 2003
Triangle Series Nationals
Mighty Mouse
Rank: 924
Weight Class: 100kg
Competed:
October 1999 - October 2004
Post Robot Wars Version - No Saw
Mighty Mouse
Rank: 987
Weight Class: 60lbs
Competed:
January 2002
Mike-da-Drum
Rank: 1000
Weight Class: 340lbs
Competed:
May 2002
Militant
Rank: 998
Weight Class: 150g
Competed:
October 2002
Millennium Bug
Rank: 984
Weight Class: 175lbs
Competed:
July - September 2000
4th wars
Milly-Ann Bug
Rank: 981
Weight Class: 175lbs
Awards: 1
Competed:
July 1998 - September 2000
Mincer
Rank: 1000
Weight Class: 175lbs
Competed:
July 2000
Predecessor to M2
Ming
Rank: 978
Weight Class: 100kg
Awards: 1
Competed:
October 1999 - July 2002
5th/6th wars
Ming Dienasty
Rank: 997
Weight Class: 100kg
Competed:
August 2003
Mechanical Advantage 
Merlin 
