do u remember fifa for mega drive (or genesis)?
u could push button A, B or C and having fireworks, an annoying goaaaaal screaming and hornets playing...
well, ps2 and xbox and pc have so much more buttons...hehe...so..besides the 'standard' celebrations, besides the specific ones for each player (like ronaldo's arm over his forehead, zidane showing his teeth, ronaldinho's samba)...u could push buttons, that would not only take the shirt off (and get the deserved yellow card - who cares? a goal is supposed to be celebrated, and u should do what comes to ur mind...damn fifa - the institution, not the ea game)) but asking the crowd to be quiet (like c.ronaldo did last man u x arsenal), kicking the corner flag and screaming wildly, like batistuta in 97, climbing the fence, jumping the adboards, and a lot of other ones, depending on the button combination (the d-pad ones could be used too)...and the R and L buttons to be used to activate crowd's manifestation...etc...etc...u know the rest...