Starfox game watch has 2nd glob for additional sound effects die marked HMC HA1152 19 pads, 14 bonded out appears to have 2 push-pull outputs, but only one side of one output is bonded out external 100K resistor between two pads - oscillator 8 inputs, but 5 are tied high under the glob directly to +1.5v other 3 inputs go to SM530's S2, S3 and S4 outputs ROM is 32 x 32 = 1K bits arranged as 4 pages of 32 bytes PLA next to ROM array has 7-bit starting addresses for each input: 00 3C 47 5C 63 00 6C 75 each sequence in ROM ends with 00 appears to have LFSR PRNG for white noise generation glob seems to be 8 input sound effects chip, for toy like "Executor" or "Echo Killer" there are 7 sequences in ROM but only 3 are used for Starfox similar to sound effect toy here: https://www.seanriddle.com/hywel/ hmc1.logicdata is a 100MHz Saleae Logic capture of the 3 inputs and the output signals hmc1allsigs.csv is an export of the Logic capture hmc1justout.csv is another export, but just the output signal hmcwav.bin was created by outputting 1 byte of 00 for every 1000 sample counts of 0 and 1 byte of FF for every 1000 sample counts of 1 hmc.wav is hmcwav.bin converted to wav as unsigned 8 bit, 1 channel, 100,000 Hz sample rate