Master MMX Weakness Guide Part 1 (X1-4)

MMX1:
1. Chill Penguin: Fire Wave
2. Spark Mandrill: Shotgun Ice
2a. Thunder Slimer (mid boss): Storm Tornado
3. Armored Armadillo: Electric Spark
4. Launch Octopus: Rolling Shield
4a. Mech Eel: Storm Tornado
5. Boomer Kuwanger: Homing Torpedo
6. Sting Chameleon: Boomerang Cutter
6a. RT-55J: Fire Wave, Storm Tornado.
7. Storm Eagle: Chameleon Sting
8. Flame Mammoth: Storm Tornado.
9. Vile: Rolling Shield
10. Bospider: Shotgun Ice
11. Rangda Bangda: Chameleon Sting
12. D-Rex: Boomerang Cutter
13. Sigma's Dog: Shotgun Ice
14. Sigma: Electric Spark
15. Velgauder Sigma: Rolling Shield
-MMX2
1. Overdrive Ostrich: Crystal Hunter
2. Wire Sponge: Sonic Slicer
3. Wheel Gator: Strike Chain
4. Bubble Crab: Spinning Wheel
5. Flame Stag: Bubble Shot
6. Morph Moth: Speed Burner
7. Magna Centipede: Silk Shot
8. Crystal Snail: Magnet Mine
9. Neo-Violen: Bubble Shot
10. Neo Serges: Silk Shot, then Speed Burner
11. Neo Agile: Magna Mine.
12. Zero: Speed Burner
13. Neo Sigma: Sonic Slicer
14. Sigma Virus: Strike Chain
-MMX3:
1. Blizzard Buffalo: Parasitic Bomb
2. Toxic Seahorse: Blizzard Shot.
3. Tunnel Rhino: Acid Burst
4. Volt Catfish: Tornado Fang
5. Crush Crawfish: Triad Thunder
6. Neon Tiger: Spinning Blade
7. Gravity Beetle: Ray Shot
8. Blast Hornet: Gravity Well
9. Bit: Blizzard Shot
10. Byte: Tornado Fang
11. Vile: Spinning Blade
12. Bit & Byte: Parasitic Bomb
12a. Press Disposer: Tornado Fang
13. Vile: Parasitic Bomb, then Spinning Blade
14. Volt Kuragiel: Triad Thunder
15. Doppler: Acid Burst
16. Sigma: Spinning Blade
17. Kaiser Sigma: None
-Mega Man X4
1. Web Spider: Twin Slasher
2. Split Mushroom: Lightning Web
3. Cyber Peacock: Soul Body
4. Storm Owl: Aiming Laser
5. Magma Dragon: Double Cyclone
6. Frost Walrus: Rising Fire
7. Jet Stingray: Frost Tower
8. Slash Beast: Ground Hunter
9. Colonel: Frost Tower
10. Double: Double Cyclone
11. General: Twin Slasher
12. Reaper Sigma: Rising Fire
13. Sigma: Lightning Web
14. Giant Head Sigma: Ground Hunter
15. Alien Sigma: Soul Body