Half of Zeta Gundam is so much a ripoff of Thexder I'm surprised Bandai didn't get sued.
Is it just me or do the Bandai and the blue Namco carts have a strong death-grip? I can't get those out of my AV Famicom without really yanking them.

I got RockBoard from a site once for like $3 and shipping. I remember they had Kid Dracula for like $2. I would've got it but I had already bought it at about the $20 going rate from another seller.
Got Hammerin' Harry 2 from them as well for dirt cheap but I still don't have the first game.

The only other Rockman game I have is 2, since I have a full NES set.

"switching Ghost Konami character?" What game are you talking about? Wai Wai World 1? Up+A (awkward but it's a 2-player game and they needed to account for that the original RF Famicom didn't have 2P Start/Select). Wai Wai World 2? There's a power-up that lets you switch for a limited time. Press Up+A when it gets to your character (though it doubles as health, taking a hit cuts away your transform time)