Yay! *Mario has recieved Skunknic Megia Connnection!*
Good luck unlocking all the games, it takes a looooooong time. (You have to enter and exit every game 50 times!!!!)
But one of the rewards is that awesome scary game you saw, with the birds, and the single screen, and the scary title screen music, OH YEAH!!!
Hey, there's also three versions of Sonic 1 in there! Only just found that out yesterday, there's the original, with the moving clouds in the background, then there's the PAL version, with no moving clouds, screwed up level order and slow gameplay, THEN there's an updated Japanese version that features minor bug fixes and slightly better sounds!
Too lazy to go get the cheat, you can find it on gamewinners.com =P
And Shifty, Activision Anthology rocks, I've got that little gem on PS2.
47 Atari 2600 games, plus their original TV adverts to unlock! Yay, hilarious adverts!