Koopa Bros.

The Koopa Bros. are the first boss in Paper Mario. There are 4 of them which have a nickname. Red ninjakoopa, Black ninjakoopa, Yellow ninjakoopa, and Green ninjakoopa. They call themselves just Red, Black, Yellow, and Green. They each have 5 Hp and an attack that varies on however many bros. are left so if there are 3 of them their attack is 3 etc. Red is the apparent leader of the bros.