I made this guide for some people that I introduced Cave Story to. I'd appreciate it if you didn't reply to this thread, as the guide covers everything that needs to be covered. It's really short, and I hope it didn't reveal to much of the plot.
Oh, and thanks Muffin for trying the game I suggested.
USEFUL THINGS TO KNOW WHEN PLAYING CAVE STORY INCLUDING HOW TO GET TO HELL
MADE FOR MUFFINQT AND OTHERS I GUESS
In Grasstown:
Before leaving, ensure you have Jellyfish Juice on you. Use this on the fire in the Mimiga Village Meeting Hall to receive the Bubbler.
In Sand Zone:
DO NOT TRADE THE POLAR STAR FOR THE MACHINE GUNDO NOT USE THE LIFE POT UNTIL YOU GET TO THE SACRED GROUNDS (HELL)Wrong, you can get new ones if you talk to Jenka again but you can only carry one at a time.
Also, ensure you pick up King’s Blade at the end of the Sand Zone.
In The Labyrinth:
DO NOT TRADE IN ANY WEAPONS HERE
Make sure you get the medicine and that Curly is out of the hospital before moving out of that area.
To get the chest in the hospital, go outside to the circular hub area. Jump up, and let one of the enemies hit you toward the wall, thus knocking you into a secret area above the hospital. This gets you the Arms Barrier.
At some point you will come across a chasm and Professor Booster falls from the ceiling. DO NOT talk to him. Instead, jump across the chasm using the red mark on the ground as a marker, letting you know where to jump. If you talk to him reload as taking the booster now prevents you from saving Curly and obtaining the upgraded booster later in the game.
After the Labyrinth:
Make sure you pick the Tow Rope in the massive Core Room. It is found among destroyed robots littered around the room in the bottom right. This can be done before or after the fight in this room, however, do not leave the room until after you’ve gotten the rope and used it on Curly.
In the Waterway:
The water currents will lead you past a door with some bats hanging around it. Reload the game if you skip this door. DO NOT skip this door. Jump up to it and enter. Place Curly on the bed and use search the bookshelves for a book. After reading the book, continuously check on Curly until you can pick her up again.
In the Egg Chamber?/ Outer Wall:
DO NOT accept Kazuma’s offer to fly away on the Sky Dragon. Unless you have the steam version in which there's an achievement for picking this, and you can reload after it concludes.
If you’d like to get the Nemesis (a gun, that while strong at level 1, actually gets weaker as it levels up, so avoid XP while holding it out), then make your way to the very bottom of the Outer Wall. Fly under and enter the door. Talk to the little people there. I’ll explain what to do next in the next section. Note: This removes King's Knife.
Search the crevasses in the Outer Wall for a hidden room by checking all the nooks and crannies of the crevasses by pressing down. If you can open the chest, you’ve done everything correctly up to this point.
In the Plantation:
Talk to the man and Curly. Go back to the Mimiga village. Use the Booster to fly back up to First Cave. Talk to the Hermit Gunsmith you stole the Polar Star from before. You will be rewarded.
Go to the Graveyard. If you wanted the Nemesis and completed the steps in the previous section, you can find the man here. Return him to his home after you’re done in the Graveyard. Next, boost up to the previously unreachable door and talk to the Mushroom. Check your inventory and read over the Mushroom Badge. Talk to the Mushroom again to get the Ma Pignon.
Go back to the Plantation and give the Ma Pignon to Curly. You will receive the Iron Bond. DO NOT GO FORTH WITHOUT THE IRON BOND. Avoid using the health pot after you've gotten past the wall of presses as this is the point of no return. Note: There's also an achievement on the steam version that if you don't pick-up your booster you'll get the Mimigas Hero achievement, but you'll be unable to avoid some of attacks the bosses use.
After the fight with Undead Core:
DO NOT go to the helicopter. Instead enter the Prefab House. Welcome to Hell. Make sure you find Curly there and pick her up.
I put in some fixes in bold.
























