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we already have a source on the music lol it's from Time is All We Need by Jessica Jay https://www.youtube.com/watch?v=p4F0rX_82t0
well this card is full of half regular old pirated NES ROMs with names round-trip translated and truncated so you can barely tell what they are. The other half is a lot of anything scraped from anywhere including plenty of classic crude romhacks
Unfortunately unlike similar devices this does NOT seem to have a standard SD card file browser, or at least the trigger for it is different. The menu for the 1000 in 1 is hardcoded & the stock card files are obfuscated, so you could swap out the roms if you can find them but not change the names
This is one of the fairly rare models of VT-series enhanced famiclone that supports loading ROMs from a MicroSD card. In fact it comes with a suspicious unmarked card labelled as "for testing only". Hmm