Fire Emblem: Seima no Kouseki

Take any of your units up to a certain character and select the trade command. Trade your weapon of choice to the top of the character's list of weapons. That weapon will now be equipped. This can come in handy when you realize you may need a different weapon then what is currently equipped.

The Triangle Attack from Fire Emblem 7 is back, but there is a catch to using it this time around. To use it, surround the desired target on three sides with Vanessa, Tana, and Syrene (whom you must safely recruit in Chapter 17), then attack the enemy. For the Triangle Attack to occur, the two supporting flyers _must_ be Falcoknights. This means that you'll have to bite the bullet and promote either Vanessa or Tana into the Falcoknight class as opposed to a Wyvern Knight.

The benefit to the Triangle Attack is that you'll get a guaranteed critical hit, and thus 3x the normal attacking damage practically whenever you want.

Beat the game once and play Ex.Map in Extra Mode. They will join in the next battle.

To use this, go to the Tower of Valni and select four pairs of people who you want to have support each other, then start the battle, place the units that you want to have support each other in adjacent spaces and end your turn. Continue ending your turns until your units can support. After you support with all your units retreat from the Tower but DO NOT SAVE. Repeat this process until you have an A-rank suppport with your four pairs of units. Once you are done simply restart the mission you were on, but DO NOT SAVE. If done correctly your units should have no support records in thier stats, but when you go to support conversation in extras the support records will be there. Using this glitch I completed 100% support in a matter of hours.

In any free map that has damage tiles, kill every monster or unit except for one. Then, position a few of your units alongside the damage tiles, and remove their equipment, either by discarding it, or trading it to somebody else. If it works, the game's Enemy Ai will move the last unit on top of the damage tile. It will then proceed to attack any units it can, until it dies from the damage received by the damage tile.

Once the creature dies, the glitch activates. Even though there's no enemies left on the map, the game doesn't recognize the last monster as "dead", and the match continues until you either Suspend and Restart, or Retreat from the fight.

If this occours during the actual story mode, as opposed to a Monster Map, the current chapter will become unbeatable, requiring you to restart the chapter.