I just downloaded the freeware version Awesome game! but I'm stuck in the grassland place and I dont know how to get the guy out of the building with the rusted door. need input what do I do?

You will need to find a key or the xplosives. I don't remember. In any case you will hacve to find three elements after talking with a robot inside a small room.

WARNING SPOILERS: Inspect the crack in the house, where the guy is in. He gives you the Rusty Key. This key can be used to unlock the Power Room. In the Power Room is a robot that offers to create an explosive for you with which the hut with the guy can be opened.

To create the explosive it tells you that it needs three items: Jellyfish Juice, Charcoal and Gum Base. The Jellyfish Juice can be simply acquired by defeating the Big Jellyfish (as you should know by now). It always drops another one for you each time you defeat it.

With the Jellyfish Juice in hand, you can get the Charcoal in Santa's House (at the fireplace) right at the beginning of this grassy area. After that you need to get another Jellyfish Juice for the robot in the Power Room. For the Gum Base you have to talk again to the guy in the locked hut. He agrees that explosives might open the door and gives you the Gum Key.

Now make your way to the right until you reach the end of the area where a building is, that can be unlocked with the gum key. In there is the gum base. Bring the three items back to the robot, let it create the explosive for you and go to the locked house where the guy is in. Boom!

This cant be right are there multiple endings? i don't think i got the right ending!

Yes, there are three possible endings. But the Grasstown thing is (as far as I know) always the same, no matter which ending you are aiming for: You need to let the robot create the explosive and get the guy out of the hut, otherwise the plot doesn't continue.

Which ending you'll get will be determined much later in the game. The "bad" and the "normal" ending can be always achieved. Whether you achieve the "best" ending, depends on subsequent circumstances when you get the Booster and even later in the Boss Battle against The Core (and some other things that you dont't have to worry about right now).

Why do you think, that you don't get the right ending? What's wrong?

everyone died and Quote & the hut guy just ran away on the dragon. what was I supposed to do different?

Hint: Don't get on the dragon.

I did the same thing my first time. It's really a hilarious way to end a game, giving you a choice that as a gamer you know you aren't supposed to choose, but most people will try anyway just to see what the guy says... and lo and behold, you can actually abandon your quest, leave the island, and end the game without playing some of the best areas! It seemed like a non-choice, one of those questions that no matter how you answer, the guy will say something, and then the same event will happen (if you follow that), but it's not.

@adam Thanks. I am playing through a 2nd time. you can actually skip the first battle with bolrog by saying no. Hopefuly I can find a way to save Curly

I noticed the Balrog thing the second time I played through. I get a kick out of things like that. You expect the answer you choose to simply produce different dialog, but you can actually skip the first boss and the later areas of the game by giving dumb answers.

Look for something shiny before the fight where Curly dies.

From your previous posts, I thought you were still in Grass Town.

I am playing through a 2nd time. you can actually skip the first battle with bolrog by saying no. Hopefuly I can find a way to save Curly

You don't need to play through a second time to get the normal ending. Just load your save game after watching the bad ending and ignore Kazuma or say "no" when he asks you to escape with him on the dragon, then continue in the Outer Wall area. You only need to save Curly Brace if you want the best ending.

ok who do I have to talk to to get the Booster back?
EDIT: nevermind

I assume that you are now in the plantation area? After Mrs. Sakamoto and Itoh have finished the rocket, talk to her again and you get your Booster back. In addition, she takes back the Mimiga costume. Note: You need to equip the Booster again in the inventory.