From Caius, 20170910 So, here are attached dumps from this Kick Off bootleg by Comodo, I put ROMs in separate folders as per type to facilitate work of DEV. As said, all devices are OTP TMM24512AP-25. All code and data have been splitted (and mostly slightly modified too) compared to original hardware which use 1Mbit devices. Here is the report of a comparison with ROMCMP: kioff10.rom [1/2] K-1.1H IDENTICAL kioff27.rom [1/2] K-7.17G IDENTICAL kioff27.rom [2/2] K-10.18G IDENTICAL kioff18.rom [1/2] K-8.17H IDENTICAL kioff18.rom [2/2] K-11.18H IDENTICAL kioff26.rom [1/2] K-9.17K 99.938965% kioff26.rom [2/2] K-12.18K IDENTICAL kioff17.rom [1/2] K-5.16G IDENTICAL kioff17.rom [2/2] K-6.16H IDENTICAL kioff09.rom [1/4] K-4.3K [1/4] 99.969482% kioff09.rom [2/4] K-4.3K [2/4] IDENTICAL kioff09.rom [4/4] K-3.3H [4/4] IDENTICAL kioff09.rom [4/4] K-4.3K [4/4] IDENTICAL kioff19.rom [1/4] K-3.3H [1/4] 99.969482% kioff19.rom [2/4] K-3.3H [2/4] IDENTICAL kioff19.rom [3/4] K-3.3H [3/4] 97.497559% kioff09.rom [3/4] K-4.3K [3/4] 98.870850% kioff19.rom [4/4] K-3.3H [4/4] IDENTICAL kioff19.rom [4/4] K-4.3K [4/4] IDENTICAL kioff07.rom [1/2] F-23.6P IDENTICAL kioff07.rom [2/2] F-24.7P 99.986267% kioff05.rom [2/2] K-19.3P IDENTICAL kioff05.rom [1/2] K-18.2P 96.470642% kioff16.rom [2/2] K-15.15H IDENTICAL kioff16.rom [1/2] K-16.16H 97.926331% kioff01.rom [2/2] K-13.1A [2/2] IDENTICAL kioff01.rom [1/2] K-13.1A [1/2] 82.894897% kioff03.rom [2/2] K-14.1B [2/2] IDENTICAL kioff03.rom [1/2] K-14.1B [1/2] 83.697510% kioff06.rom [1/4] K-17.1P [1/2] 99.713135% kioff06.rom [2/4] K-17.1P [2/2] 99.530029% kioff06.rom [3/4] K-20.4P [1/2] IDENTICAL Strangely K1 @1H on bootleg is reported as identical to first half of the 'kioff10.rom' of original board but K1 is the device containing OKI MSM6295 samples (address and data lines connected each other, no chance of mistake) while' kioff10.rom' contains 'scroll0' data according to source. Indeed, data of the 'kioff10.rom' ROM is not present on my board or and hence no matching for 'kioff20.rom' and 'kioff21.rom' (which on original board contains OKI samples). As previoulsy said, sound system uses a YM2203 in place of YM2151 of original hardware. Now measurements : Main 68000 CPU @6MHz Sound 68000 CPU @7.2MHz MSM6295 @3.6MHz, PIN 7 is HIGH YM2203 @3.6MHz H-SYNC @15.34KHz V-SYNC @56.24Hz