If we exclude FBI...
you can't load decyrpt9 if you are in the home menu...Decrypt9WIP if you are on firmware 4.5 to 9.2 or if you have A9LH
He asked for the app, not the way to access ityou can't load decyrpt9 if you are in the home menu...
Well, H&S is installed on the NAND already. I think the problem here is the size, since it can't exceed the original H&S' afaik. And good luck finding a ~900KB (or less) DSiWare game.I don't think so, as dsiware needs to be installed on the nand and in cia format. I could be wrong though