A new and distinct cultivar of Anigozanthos hybrid plant named `Ramboball`, characterized by its medium red-colored flowers with a small to medium sized perianth tube, short to medium plant height with an upright growth habit, large number of infloresecences per plant, an almost continuous natural flowering season, medium degree of reflexing of perianth lobes on a mature flower, short flowering stem length and tolerance to alternaria and rust diseases.