ms pacman with the speedup chip is a hollow thrill indeed.
it kicks ass when you first sit down to play it cause "ooooh, look, the ghost mf'ers can't even TOUCH me!" but then after a few minutes of playing you get tired of kicking their little ghosty asses oh-so-easily, and the game becomes fun no longer.
by comparison, sit down and try to play the "normal speed" version (you and the ghosts are the same speed). After playing sped-up it seems like absolutely no fun, but give it a few chances and the addiction that is ms. pacman may well grab hold of you. you could find yourself never going back, and being completely captivated by a game that was written before many members of this board were even born..