looks like there's been an update with new difficulties.
http://www.joystiq.com/2009/12/24/cave-story-coming-after-the-new-year-with-new-difficulty-modes/

This game looks great! Nothing better than a good old-school 2D platformer! And it works on Mac!

You get a notice when someone from the team responds in a post. All posts from the team are in in blue. What are the chances we'd MISS the fact post is from someone in DevTeam?

You naughty rep whore you...
The game is fantastic! Thanks for sharing! I'm playing it on my PSP now.

that's so weird, i just downloaded this yesterday for another playthrough. i have always loved cave story, i played the shit out of it back when i didn't have a computer that could run games.

I've played this game so very, very much. Aside from it seemingly not working in windowed mode (I got really lousy frame rates) I've only ever encountered bugs twice in all my countless playthroughs, both times being a game freeze - and I'm inclined to blame the laptop my school lent me for both instances.
It's a superlative game and the whole thing with one guy meticulously polishing a game for five years completely on his own is almost enough to inspire me to pick up my discarded "C++ in 21 days" book from the floor, where it's been lying for a year and a half. Well, almost. I'm kinda hungry, it's late, I bought a few games from Steam for cheap I might want to try, I've got the entire Wheel of Time to reread...
Maybe the WiiWare version can rekindle my enthusiasm. When it was announced I swore to myself I wouldn't do a Super Mario 64 and play through the game before getting the remake, and now it's been a year and a half... *Whimper*
The guys at Nicalis seem to be working rather slowly, but on the other hand, I have the utmost faith in them delivering a good port. They've got NIfflas, creator of Knytt, after all.

look, the theme is in mcdonalds ads
http://kotaku.com/5442357/cave-story-theme-as-envisioned-by-japanese-mcdonalds-ads