gen 2 had the worst designs. followed by gen 1, but they've been improved upon in later ones. just that those original sprites, god no. gen 3 actually had a lot of awesome ones which was just surprising, and gens 4 and 5 kicked it up a notch. overall, 3's the real standout for me in that it set the level that things should be at, but i think i like gen 4's designs best, followed by 5.
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The King Wang.
Listen up Urinal Cake. I already have something that tells me if I'm too drunk when I pee on it: My friends. - Colbert.