Well, this game either has no AP, or carts have long since auto-detected its AP type, because the game WORKS IN THE R4! I used both that v1.23 loader and an old YSmenu with an original (non-clone/fake) R4DS. Worked and saved just fine. So good news for you R4 guys.
I did just notice a rather insignificant thing in my CycloDS though.....during the opening vid, there is a white bar along the bottom of the touchscreen. On the R4, the touchscreen is just blank (as is the retail cart). Doesn't seem to affect game play at all, so I don't know how much it matters, but it could cause issues later on for CycloDS owners......dunno. The R4 does this little "screen shudder" deal for a second as it saves the game (the CycloDS doesn't do that), but again, it doesn't seem to affect gameplay, so I don't know how much little things like that really matter. But that's some things I noticed.
Do yourself a favor and just go DL that pdf manual from Sega now. Upon further inspection, it's pretty much the same thing as the manual that comes with the game, but in full color. There are a few differences...... Trust me, you'll be wanting that downloaded manual whether you're playing on a retail cart or a free slurpy downloaded ROM anyway, just for the full color layout if nothing else.
Seems like a very nice game so far.....the menu IS pretty clunky.....it makes you touch the screen harder than you'd think it should, and there's a couple millisecond delay when you touch stuff, not to mention trying to figure out all the options in all the menus. There's definitely a learning curve to this game. Don't give up on it until you played it for at least a few hours......it might take you that long just to get used to the various menus.