I thought of some Signature Moves.
>Inspector Gadget
Gadget Copter: Gadget flies up, damaging enemies caught in the rotors.
Gadget Arms: Gadget extends his arms for a wicked double punch.
Gadzooka: Gadget fires a fast moving rocket from his gadzooka.
>Venom
Venom Seize: Venom shoots forth a web, dealing damage, he then pulls the target back to him.
Lethal Lunge: Venom hungrily lunges forward, dealing damage.
Venomplex: Venom grabs his enemy and hits them with a suplex(unblockable).
>Popeye
Bullet Spit: Popeye spits out a barrage of chewed up steel.
Astro Uppercut: Popeye performs a leaping uppercut that sends the enemy into orbit.
'Ol Twister Punch: Popeye performs his twister punch, dealing damage repeatedly.
>Agent Anti-Venom
Anti-Venom Bullets: Agent Anti-Venom fires a quick moving Anti-Venom bullet.
Capture Web: Agent Anti-Venom fires forth a web ball that traps his foe in a cocoon.
Combat Roll: Agent Anti-Venom fires a barrage of Anti-Venom bullets, then rolls backward.
>Godzilla
Atomic Breath: Godzilla fires a beam of atomic energy forward.
Earthquake: Godzilla stomps, causing a small earthquake that knocks his enemy into the air.
Nuclear Pulse: Godzilla grabs his foe and unleashes a vicious pulse of radiation.
>Scarlet Spider
Web Ball: Scarlet Spider fires a web ball that traps his foe in a cocoon.
Web Throw: Scarlet Spider fires a line of web, then swings his foe to the other side of the screen.
Mask of Kaine: Scarlet Spider grabs his foe and claws at their face.