Kent C. Koopa
From the Super Mario Wiki
“Hey, you in the hat! Wait! It's fine weather, isn't it? My name is Kent C. Koopa. Please remember it, OK? If you want to use this road, you need to pay me 100 coins. So sorry, but that's how it is. You don't pay, you don't pass. Coins make the world go round. It's all about the money!”
Kent C. Koopa is a red-shelled Gargantua Koopa Troopa that blocks Pleasant Path, the road to Koopa Village and the Koopa Bros. Fortress in Paper Mario. He appears after Chapter 5, blocking Kolorado's way home after the explorer's adventures on Lavalava Island. He demands a toll of one hundred Coins in order to let people pass, but he can be battled instead as an optional boss.
He is an extremely strong fighter, with high offense and defense. However, he can be defeated easily if Mario and company (preferably Watt) attack his tail, instead of his shelled body. Kent C. Koopa uses a Ground Pound attack on Mario to squish him to do ten damage and a slow Shell Toss to flatten Mario and his partner for three damage. He could thus aptly cause great difficulty for Mario by knocking his partners out for several turns. However, he is very easily put to sleep, which can be taken advantage of. Mamar's special move, Lullaby, has an extremely high (though not 100%) chance of working, effectively leaving Kent C. helpless for its duration. If Mario uses the Spin Smash attack on Kent C.'s tail (while flipped over), he will spin around, causing him to drop a few coins.
Unlike most Gargantua Koopa Troopas, Kent C. walks on his hind legs. He is also unique in that he needs glasses and his name itself is even a pun on "can't see".
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