I've been thinking about building a portable 2600, but the thing bothering me is the battery life question. AFAIK, all 2600s use an NMOS processor, because the CMOS chips are missing illegal opcodes. Is the junior the same as the other 2600s? I'd consider using an FB2, but is the compatibility any good? I know you can't use the supercharger or the harmony cart with it. Aren't there also a lot of homebrew which don't work with it either?
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