http://www.miraigamer.net/cavestory/guides/CaveStoryFAQ.txt


don't miss these optional items:

==== Labyrinth ==========
    - either the Snake or Turbocharge, depending on what gun you have  (clerk in the shop)
    - Arms Barrier  (to the upper-right of the 'Cure-All' clinic)
    - Tow Rope  (right before battling the core)


==== Waterway ===========


==== Egg Corridor? ======


==== Outer Wall =========


==== Plantation =========


==== Last Cave ==========


==== Endgame ============


==== Sacred Ground ======
















==== First Cave =========
    - get Life Capsule  (far left)
    - get Polar Star (gun)


==== Mimiga Village =====
    - get Map System
    - get Silver Locket
    - meet, and optionally fight, Balrog
    - enter Graveyard, and get Arthur's Key
    - unlock Arthur's house
    - use the Teleporter


==== Egg Corridor =======
    - get 1st Life Capsule  (just below start)
    - get 2nd Life Capsule  (above first savepoint)
    - get ID Card   (in Egg #6)
    - get Missile Launcher  (inside second savepoint)
    - open use ID Card in Egg #1 to open the shield
    - fight the big boss
    - talk to Sue inside Egg #00
    - teleport back


==== Grasstown ==========
    - go talk to Sue inside her cage  (get new mission: go to Grasstown)
    - go back to Arthur's house, and teleport to Grasstown

    - talk to Santa  (get new mission)
    - get Santa's key
    - get Fireball  (from inside Santa's house)
    - get 1st Life Capsule  (above where Key was)
    - poke your head in the fireplace   (get new mission: get Jellyfish Juice)
    - get Jellyfish Juice, use it on Santa's fireplace
    - get Jellyfish Juice, use it on Chaco's fireplace
    - go through fireplace

    - try the locked door, talk to the guy inside the crack, try locked door again, talk to guy again
    - get missile-upgrade above save-room
    - unlock power-room door with key
    - turn on power, fight boss [Balrog], talk to robot  (get new mission: collect ingredients)

    - talk to guy again, get 2nd key
    - get 2nd missile-upgrade  (fly above stuck-guy)
    - get 2nd Life Capsule  (inside "puzzle" room)
    - go through fan-jump-"challenge" at far-right
    - get Gum Base, fight boss [Balrog]
    - go far-left and get another Jellyfish Juice
    - go back to power-on-robot, and get explosive
    - apply explosive
    - on your way beck, GET MROE JELLYFISH JUICE
    - go back through teleporter


==== Sand Zone ==========
    - talk to Sue  (get new mission: go to the Sand Zone)


==== Labyrinth ==========


==== Waterway ===========


==== Egg Corridor? ======


==== Outer Wall =========


==== Plantation =========


==== Last Cave ==========


==== Endgame ============


==== Sacred Ground ======