You are going to have to do some reading, Then get yourself an Mpkg installer, or better yet, one of the super utilities like smart assistant or wondermoto2, or both. I think the Emulator you saw on the YouTube was the FBA, thread is here:
APP: Ezxfba Emulator + Roms Pack - MotorolaFans.com Forums
games are included in the post.
Just out of curiosity, how can you be "pressed for time" to play street fighter?
Once you get the Mpkg installer, try out the other Emulators, like gpSP, its a nice working GBA, and the newest one to be ported for our phones, EzxEmu, it Runs GREAT and plays NES SNES and Sega Genesis games.
Also, do a little more reading in the future, all the info is here in the forums...
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