Both games are literally the same thing, except Shell Shocked has (albeit simple) boss battles while Lost Formulas instead does educational math levels. Overall it's okay. Lost Formulas is the more polished of the two thanks to the PC having better graphic capabilities than the PS1, but still you're better off playing any of the Crash Bandicoot games from the Naughty Dog era than either of these games.
This rip is based on the MIDI's from The Lost Formulas' disc.
Download, and don't fall for the clickbait advertisements!