Unlock Arcade mini-games
     There  is an arcade next to the transerver in Area C-2 where Vent
or  Aile  can play mini-games. At first, none of the games are active,
but  by  completing certain tasks within the game, you will be able to
play them by pressing Up next to a lit screen.

Crusher-F: Defeat any two bosses
     Mega Crusher-F: Beat the high score on Crusher-F (100 points)

Biometal O / Model OX
     The  secret  area  N-1  houses one secret boss from Zero 3- Omega
Zero.  People  who played that game know that this guy is using Zero's
"origional"  body. Anyway, once you take down this guy, go to the area
where  you can fight bosses from Zero 3 and 4. Take the third door and
follow  it through. Eventually you'll reach a strange stone that looks
alot like a live metal. Go to the lab in X-1 and talk to fluub (in the
Lab  area).  After the game, he'll analyse it and find out it's a live
metal,  letting  you use Model OX. NOTE: You do NOT have to beat the 8
bosses from Zero 3 and 4 to fight Omega Zero or get OX.

Keep Model X
     Complete  the  game  with  both  Vent  and Aile on Normal or Hard
difficulties  and save their "Cleared!" save files. Now, when you play
through  a  New  Game  again  as either character, you'll keep Model X
after acquiring Model ZX.

Unlock Hard Mode
     Beat  the  game  once  on  "Normal  Mode"  in order to unlock the
extraordinarily difficult "Hard Mode."

Megaman Zero 3 and Megman Zero 4 bonus
     If  you insert either a copy of the GBA Megaman Zero 3 or Megaman
Zero 4 in the GBA slot of the DS when starting a game. The bosses that
were found in the GBA versions will be found throughout Megaman ZX. Do
you have what it takes to defeat them?

Purpose of the doll
     The  doll in Prairie's room isn't just there for decoration or to
attack  just for fun. If you continually strike the doll with attacks,
in  time it will drop a "W Can." The "W Can" or Weapon Can refills all
of  the  weapon  energy for all of the Live Metals. The doll will only
drop it if you don't already have one. So return to the doll after you
use  the  W  Can  to get another one. Cutting the doll from its string
makes obtaining the item much easier.