The Big Eyes (A.K.A Tiny UFO) are the external defense forces of the Rugname.
The Big Eyes serve as the external defense for the Rugname. They always come in waves and following a pattern. Destroying the red commander will make all other to die as well. Some are able to teleport from nowhere.
- The external Big Eyes are based on the Imperial TIE Fighters from Star Wars while the other, internal Big Eye is based on the Martian War Machines from George Pal's 1953 cinematic adaptation of " War of the Worlds".
- Their flying patterns are reminiscent from Namco's vintage shoot'em up Galaga.
- Its Alternative name was revealed in Metal Slug Defense 1.30.0 Update.
|Human||Rebel Infantry | Arabian Infantry | Japanese Infantry | Pirates | Scientists | Ptolemaic Infantry | Natives | Hunters | Future Rebels|
|Undead||Mummies (Mummy Generator) | Dog Mummy | Mutated Soldiers | Zombies | Tar Man | Clones|
|Mutant||Bat | Chowmein-Conga | Ohumein-Conga | Enormous Moray | Jellyfish | Flying Killer | Man Eater | Huge Locust | Sasquatch | Maggot | Big Snail | Giant Caterpillar | Squid | Huge Ivy|
|Alien||Monoeye | Ring Laser Mecha | Hopper Mecha | Mars Mecha | Mars People | Big Eye | UFO | Mini-UFO | Invader Squad | Winged Invader | Flying Parasite | Hunter Walker | Hunter Lord | Scavenger | Crab-Tank | Vanguard | Smasher | Invader UFO | Indestructible UFO | Flying Core|