Assuming this is a game copy for orginal DS, and not the more modern 3DS, it's possible to take a shot in the dark I guess?
The NTR-ANMP-0 L2 code is probably a good lead. NTR identifies it as a Nintendo DS product, ANMP should be the game's unique identification number, and I think -0 L2 may be a region code of sorts? Not sure though. I found a single hit for "Nintendo DS NTR_ANMP" on what looks like a text file on a Polish website.
Did you by any chance ever own:
A, most likely European, copy of "
More Brain Training from Dr. Kawashima: How Old Is Your Brain?"? This would have been released in 2007. The North-American title would have been "
Brain AgeĀ² More Training in Minutes a Day!" if that sounds more familiar, but this document has it listed as European.
Note 1: Australia and New-Zealand are also possibilites in that case, as they also use PAL-region carts.
Note 2: Nintendo DS devices were not region-locked, unlike its successor the 3DS. This means you could have played this on any DS (North American, European, Oceania, Japanese, etc.), but it does give a clue where the game was most likely purchased/gifted from.
That's the only direct match for NTR-ANMP I can find, although it does
not include the -0 L2 part of the code. Again, I guess that would be a region code, but I don't know where/how to check that. Assuming ANMP is indeed a unique identifier, and the textfile is correct, this would solve it though.
Additionally, the C03-10 appearing above the connector pins is also listed with the More Brain Training title. That said, c03-10 hits about 80 other software titles from wildly varying publishers (Capcom, EA, Natsume, THQ, Ubisofrt Nintendo's own stuff) and released in different years. I'm going to guess it instead refers to a manufacturing plant, or a subsection thereof, or perhaps a location where the carts were flashed or something - but that's all complete speculation.
European/Australian/N-Z cover artNorth-American cover art