Quoted from Rarehero:The only real difference between the two is that Meg has a coil (she bounces up and down when you hit her), but the Fiona toy is stationary. I feel like there might be something different about the way hits register on the Magic Mirror vs. the Beer Can - but it might just be the toy material that makes it feel different to me. Rules are the same, code works on either machine.
Code works fine, but there's minor differences. One of the character lamps is different, which makes Stewie/Donkey a bit harder. Also, Chicken Fight can be won and ends, whereas Wrestling just runs out the timer.
There are a few other nuances that makes FGUY better, biggest being the voices. Good custom pinball jokes from the original actors vs meh jokes from bad voice actors. Stewie's MB callouts are much shorter than Donkey's ... it gets painful listening to the EM voice-actor say the same wayyyy-too long jokes over and over. Also, TV Wizard Mode is *THE* best implementation of a hurryup wizard mode, period. The accompanying music and sounds on family guy just nail it. Perfection... that wizard mode is the one big thing keeping the game in my collection. Shrek has the same rules, but WTF on the laid-back music?? That's like something you'd hear putting your initials in, not at all proper background for hurryups!
Shrek was a programming exercise and a decent re-theming, but the original is the best.