Insane difficulty level:
Press 6, 8, 2, 4 at the options screen. The border will flash to confirm correct code entry.

All weapons, level select:
Press 3, 7, 6, 6, 8, 2, 4, 2 at the options screen. The border will flash to confirm correct code entry.

Unlimited ammunition:
Press 2, 7, 2, 8, 3, 7 at the options screen. The border will flash to confirm correct code entry.

Immediate mission end:
Press 2, 8, 8, 8, 6, 6, 7, 7, 3, 7, 7 at the options screen. The border will flash to confirm correct code entry. Then, press * while playing the game to fail the mission. Press # while playing the game to complete the mission successfully.

Frame-by-frame view:
Pause your game, then press 1 or 3.

Quick turns:
Hold A + C when turning while playing the game.

View mission statistics:
Press 8 while playing the game.

Move title screen:
Press Up or Down when the Iron Soldier logo appears on the title screen.

Rotate mech:
Select the "Add weapon" or "Remove weapon" option on the mech configuration screen. Press 1 or 2 to rotate the mech.

Repair mech:
Fire a cruise missile at your own mech after receiving a low energy warning.