I'm not talking about a one-shot deal where it took you twenty minutes to take down Onyxia alone in WoW, but rather of all the bosses you've beaten, which took the most time, on average?
Personally, I think mine would be K. Rool in DK64. With all the cinematics in it and the fact that you have to play as all the Kongs really padded it out.
Second place probably goes to Shaolin Monks, for the last three bosses (if you count them as one boss fight), for more painfully long unskippable fatality cutscenes and just generally taking a long fucking time.
Personally, I think mine would be K. Rool in DK64. With all the cinematics in it and the fact that you have to play as all the Kongs really padded it out.
Second place probably goes to Shaolin Monks, for the last three bosses (if you count them as one boss fight), for more painfully long unskippable fatality cutscenes and just generally taking a long fucking time.