Yeah, I'm also gonna say it's a Donkey Kong clone (but not Crazy Kong)...I have one that looks similar, although it's 3 boards, and the bottom board is huge. The top board looks just like the one in your 2nd pic (minus the little connector near the top...mine doesn't have those populated). I haven't fired mine up yet, but I got it from Steph, and he ran a few of the roms thru romident and said it was DK. It's got the same sound processor as DK (8035). CK uses an AY-3-8910 PSG for sound, so I know mine's not a CK clone.