Iron Soldier 3 Codes -

Extreme speed:
Press Select during game play to display the options screen. Then, press Right, Up, Start(2), Up. A sound will confirm correct code entry.

Glitch: Robot melding:
Go to two player arcade mode and choose any of the three robots,. You do not have to choose the same robot for each player. Then, on at least one of the player's robots, equip the Time Bomb. Next, in the middle of the match, face each other and have both robots ram into each other so that they can be seen in each screen. Keep running towards each other, and have whoever has the Time Bomb throw it. Instantly, both players will be sucked into the first player's robot, and the game will switch to cooperative mode (with player one controlling movement and player two controlling weapons).