You won't have any luck with that, as the SPFQ+ completely ignores the SRAM size from the smc header :/ (that's what all this hex-editng does... correcting SRAM sizes in headers previously fucked up by GoodSNES). Only way to get it to work is with a crack via ucon or insnest... or you send it via GTool.
What is Tetris 3, btw? Couldn't find that anywhere... only 1 & 2 and some other Tetris variations.
-- Matthias