I fixed the loading problem on my R4, and I'm now gonna download KSDS.
But might I suggest an option to rename the data folder? A lot of other games might use a folder called "Data", so renaming it "KSDS_Data" would be useful.
Edit: Also, a few aesthetics: first, Juni's icon on the map is too far to the right. (Look at it when you're climbing on a left wall and again on a right wall.) I'd suggest shifting it to the left about two pixels.
Also, I noticed all the objects are blue squares on the map. Does this count for the invisible blocks, too? That may be a problem on some maze levels or this one "Flashlight" game I remember playing. I haven't played any games with that in it yet (only played the tutorial and The Machine), so I dunno if it does that. I see that the water doesn't do that, though. :P
Third, in the original Knytt Stories, Juni respawns rather quickly. I kinda like the new death animation and the fact that it's slower, but, on some levels, like TrickJumps or levels that are hard to impossible, you might wanna speed up the spawn speed. Or have it be changeable in the options menu. :)
Other than that, you win a :hiddenstar:. Though I know you got lots already from this. :awsum: Now if only if someone could port the level editor...:shifty:
Edit: Juni can also moonwalk. ._. Jump, and, in midair, hold down or up. If you keep holding down (or up) when she lands, she'll play her walking animation while still.
Edit: Adding on to this, if you hold right or left and then slide to up or down, Juni will continue in that direction and the camera won't follow until you release.
Edit: One last thing: I miss the ctrl+R and ctrl+S. D: (And I, too, have encountered the ledge-double-jump glitch.)
Edit: I lied. One last last thing: When Juni pressed down to save on a save spot that's a few tiles above the ground, the screen will move down because of the camera. :(
Edit: One more last last thing: it's really annoying having to convert every single song and ambiance file to MP3. D: Can't you do an in-game conversion, or, better yet, use OGG?
Edit: I beat The Machine on KSDS, so I tried to install Sky Flower, Gustav's Daughter, A Strange Dream, An Underwater Adventure, and This Level Is Unfinished, and I even converted all the songs by hand (...), but whenever I try to play the game freezes. :U HALP
Edit: I found the actual ASD expansion pack on the stack, so I guess it's solved (though I don't have Gustav's Daughter), but still, how do I install other levels?
Edit: AUA doesn't work. D: It freezes when I go to the second screen. This is the one that came from your site, rrc2.