Stranges glitches and "secrets" of Paper Mario

[Sirgebet]

Most of this things are knew already, but I guess that there are some people that actually don't know this c:

​Useless and useful things:

• ​At the very beginning of the game, if you talk to the Toad that guard the Peach's Room, he'll let enter you in the room.
  
• ​When Buzzar (the minor Boss that appear in Mt. Rugged) ask your name, if you answer "Luigi" it won't fight with you.
  
• ​If you fight Tubba Blubba withouth the heart and you have Bow, you can use Outta Sight to get invisible, and in the turn of Blubba he'll go away.
  
• ​In the chapter 3, with the Shy Guy, there are a room with a slot machine. If you fight next of the machine, in the background of the fight there are a funtional machine, so if you hit the start and a button it can drop money.
  
• ​If you have a Lemon Candy, you can give that to the Anti Guy and skip the fight to get the Power Plus Badge.
  
• ​You can hit Professor Kolorado when he's been attacked.
  
• ​If you hit enough times the Crystal Tree (Produce Crystal Berries, a key item in PM), Posie'll kick out you of the room, if you try to enter enough times, it'll let you in.
  
• ​Normally you break Watt's container glass with your hammer, although, if you hit it with Bombette it'll say "You're crazy, mister! Did ya have to, um, blow it up to get me out?"
  
• ​The last save block in the game says:
  "Hit this block to save your game progress.
  When the game is over, your status will return to what it was the last time you saved, and you can continue to play.
  When you find this block along the way, remember to hit to save!"
  
• ​You can still hit Bowser in his "invencible" form, with the "Star Storm" star move.
  
• ​There are lots of part in the game that you can fit because you're thin enough. For example, there are a big skip in Chapter One because one of the stairs are like one or two pixel separated of the ground's border (here's one example: http://youtu.be/EFTN2fK9WL4?t=27m14s - note: if you have enough time, watch the complete video)