You can use edges that end in a corner in order to boost Mario or Luigi forward. Walk off the ledge diagonally and then move towards the corner.

Jump into people to gain distance.

There are many dialogue boxes throughout the game which can't be removed right away. You can halve the time you need to wait for those boxes to go away if you autofire the "A"-button on the correct frames.

This is especially useful when you need to guide Peach through Teehee Valley. Toadsworth's dialogue will go away faster and you can save Peach from being captured the first time around.

Walking up staircases will slow you down. Face perpendicularly to the stairs and then jump across it to keep your normal speed.

Sometimes it's significantly faster to optimize the camera. Why? See the animated demonstration on the right.

On the right, camera scrolling wasn't taken into consideration. On the left, the bros move closer to the platform and Mario jumps to minimize the distance the camera has to cover.

In order to enter a wall, use Thunder on Mario and guide him into a wall with an acute angle. There aren't many spots in the game to use this glitch on and it isn't useful in speedrunning.

See here for a demonstration of this glitch.

In the Japanese version of the game (Mario & Luigi RPG), have Mario use Fire on Luigi when close to a ledge. If done properly, the brothers will be in a glitchy state that can cause them to enter walls and reach places that where previously thought to be unreachable.

See here for a demonstration of this glitch.

This glitch can be used to

• skip some parts of the 1st star bean chasing
• skip some parts of Joke's End
• skip Bowser's Castle completely

Lucky hits, item drops, enemies' attacks and stat bonus roulettes can be manipulated by entering a battle at a different frame (TODO: Is this true? Might just be the RNG changing in the overworld map that's responsible for this).

Some of Mario's or Luigi's attacks cause the RNG to change, so the outcome in battle can change when different sets of attacks are used.

Overworld enemy/NPC movement is determined by the RNG (see addresses below). Other things in the game can be manipulated as well, such as the location of the orbs in the Hohooros minigame.

Mario

Luigi

Items

Misc.