Most Game Boy games are 32kb in size.
What game are you testing?
Is it a clean cartridge?
Tested Super Mario Land and Pokemon Red, both recently extensively cleaned and I tested them both multiple times.
I'm not ruling out a bad connection somewhere, specifically the transfer pak seems to make really lousy contact, but I tried it repeatedly after taking it all apart and so on...
agbd works fine. The 64drive is the only flash cart it will work on.
Err, "agbd"? I don't know what you mean here