Judging from the screenshot, I'm guessing you're being sarcastic...right?
EDIT: Then again, according to Wikipedia:
"Cave Story has been very well-received by critics. 1UP.com described it as so massive that it rivals modern GBA Castlevania and Metroid games in terms of scope and play time. InsideMacGames ascribed the game's popularity to its polished feel, engaging storyline, and compelling artwork.
In the July 2006 issue of Swedish game magazine Super PLAY, Cave Story was given 1st place on their list of the 50 best freeware games of all time. EGM stated that the burgeoning Western indie game scene owes a tremendous debt to Japanese pioneers like Studio Pixel, whose freeware hit Cave Story proved that with sufficient vision, skill, and passion, a single developer can still craft a deep, compelling action game."
Maybe you weren't being sarcastic! I'm not familiar with Cave Story. What's it all about? How does it play? You've gotten me interested now.