From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
They are, in order:
- Ninja Murasaki, the leader of the brothers, and the eldest.
- Kon, the second eldest.
- Cha, the middle brother.
- Aka, the second youngest.
- Ao, the youngest.
- Murasaki's Brothers appear in the crossover episodes of the remade 1990s version of Dr. Slump. When Goku arrives in Penguin Village with all of the Dragon Balls in his knapsack, except one that Arale Norimaki has found, Murasaki's Brothers attempt to get them all from Goku. They are defeated by Arale and Goku working together.