SuperGNES (SuperNES Emulator) - BubbleZapGames

[jag567]

I have a sticky problem with SuperGNES on the OUYA. I just downloaded the emulator, and tried to get some game images from the internet. Clearly I was confused, I didn't initially get that it was a two step process. The download barly flickered, and didn't confirm it had completed. Naturally I ended up trying the download several times. When I got to the second step I found I had several copies of the game I tried.
After failing to find way to delete the duplicates, I decided to uninstall and start over.
I did that twice and discovered I made the problem worse each time. Each attempt accumulated more duplicates. First time I deleted via the play menu. The second time I used the apps item under settings (stopped, deleted data, unstall).
Where are the downloads stored? I need to deleted the duplicates.
I would have liked to have gotten this information from Bubble Zap Games. Nothing on their web site addresses this, and I didn't find any way to post a question.
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I found my rom downloads in the obvious place, Downloads under the storage item in settings. A previous hunting expedition had convinced me that I would find nothing but statistics here. I guess it pays to have a second look.
Now my problem is that I haven't figured out how to delete items from Downloads. The selection boxes look like they might be useful but I can't figure out how to select one. I also don't see any actions that might be associated with selected items. The could show up after I manage to select one.
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I was able to select the check boxes using the glide pad. Once I had done the a selection some Icons appeared in the upper right corner of the screen. One of them was a trash can. I used the glide pad again to select the trash can. The duplicates were deleted. Thanks for listening, I think my problem is solved.