I know I have. I've done it in the past with Nintendo, Sega, Capcom, Hudson Soft, and Taito.
Right now I'm on a Konami binge. I'm playing waaaaaaay too many games at once. On the NES, I'm currently looping Contra, and Super C to set some personal high scores. I'm also playing TMNT III: The Manhattan Project for nostalgia kicks. Life Force is frustrating the hell out of me, but I keep coming back for more. And even the Double Dragon clone on rollerskates, Rollergames (published under Konami's other title, Ultra) is getting playtime (I've only beaten this game once, it's hard!).
But it doesn't stop with the NES. On the SNES I'm enjoying a good run through Sunset Riders and am thinking about digging out Gradius III again.
On the Genesis I'm currently addicted to Rocket Knight Adventures... once agin.
On the GBA, I'm about 1/3 the way through Castlevania: Aria of Sorrow (for the 5th time).
And finally we've got the Playstation. I'm enjoying a romp through Vandal Hearts ATM and am planning on starting up Metal Gear Solid (never played it before
).
So... anyone else go on these kinds of gaming binges?