My bro beat the first (and worst ending) and it rewarded him with one of the three songs. But still, he hasn't beaten the Sanctuary yet, so I'm assuming when you beat all three endings it will give you the three final songs.

P.S.: If any one is doubting that Corbie is in the credits, check this vid (uploaded by me).
Skip to 14:28 and one line up (from the bottom of the "special thanks" section) is his name.

^{HUGE SPOILERS ABOVE}

Oh my gowrsh, hard mode gives you only 3 hp and no missles/expansions.
Let the trip to hell begin.

Got the normal ending the other day. Have I spoken about how much I love this game? I feel like I have
Anyway, I'm going for the best ending now. I started playing it on WiiWare just to see definitely which version I like better, and I actually have to give the edge to the DSiWare version. I know you can turn it off, but that remixed soundtrack leaves a bitter taste in my mouth (even with the update). Plus, on the DS it's portable

So I looked up a walk through online and couldn't believe all the things you have to do just to get the good ending. I would never have figured it out on my own. Not to mention all the different weapons and items in the game I missed.

@Tech101
Yeah it's incredibly specific, and I can't imagine doing it without a guide. One screw-up and you're...well, screwed. Up.

I need a little help on getting Booster 2.0 and getting back to the Labryinth.
since this is the only way to get the best ending.

or is it too late?

if you accepted booster 0.8 then its to late.

looks like I got to start over......

Spoilers

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ARGHHH! I beat all three endings, got every item and weapon in the game, unlocked the extra mode, and I still haven't unlocked the last two songs! Maybe I have to beat the Time Attack mode to unlock them.
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End Spoilers

^ You do.

http://www.gamefaqs.com/boards/608961-cave-story/57322566

You have to beat it in under 5 mins? No way!

I need a little help here......

I Saved Cruly and taken her to that Small room, in the Water cave.

I put her in Bed, and fix her up.
Now, do i leave her or take her with me

Take her! There's not anyway to get back to here once you decide to leave her- I don't even think that you can get back into the shack.

I think she appears later on in the end part if you leave her. Not sure but have you cured her amnesia yet. If not I think you leave her.

Fixing her then taking her with you leads to the amnesia part. So do what Blue Cat said.

I Caved in (pun intended) and bought the DSiWare version of the game. I loved the PC Freeware version, but I was never able to get over halfway through the game as it for some reason didn't run well on my old desktop. DSiWare is a perfect fit for this amazing game and Kid_A is correct, this is an absolutely amazing game. I'm a big fan of Indie Gaming and this game is absolute pure gaming bliss for $10 bucks.

@Corbie.... Congrats of the Credits Thanks, really great stuff man!

With the aid of Nintendo Power, I hope to actually get the best ending this time. Just got to Sand Zone.

@Odnetrin - They printed a guide to the best ending in NP? I hate my dad even more now for being stupid and letting my subscription expire.

By the way Od... If you want to succeed in getting the best ending easily, don't use the heart jar which you can get in sand zone for anything until the last area. Not for the Three consecutive boss fights ( _{needed for normal ending} ). I used up mine during the fights during my second playthrough and I had the hardest time in conquering the last area.

@Birdman - you know, You could refer to GameFaqs for the game guides. Its free and you have many references to guide you.