Jonathan Joestar (ジョナサン・ジョースター, Jonasan Jōsutā) appears in Diamond Records as a playable character in both the Action Battle and Tactical Battle game modes. He has a variety of unlockable statues varying between the 'Courage', 'Unity', and 'Fighting Spirit' types, ranging from 3 stars to 6 stars.
Jonathan's moveset in both game modes is comprised of various Ripple-based attacks inspired by the anime. As a Ripple user, Jonathan has an advantage over vampires, zombies, and pillar men.
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Moveset
Jonathan's basic attack string is a combination of up to five various strikes. In Tactical Battle, this is cut down to only three hits.
Jonathan unleashes the Sword of Luck and Pluck to slash opponents multiple times. (Unlockable)
Jonathan unleashes a powerful punch against opponents using the ripple. This attack replaces SP Skill 1 in Jonathan's 3 star statue.
Jonathan sends an overdrive through an opponent which has the ability to stun them. In Tactical Battle, this would also give the enemy a temporary defense debuff. This attack replaces SP Skill 1 in Jonathan's 'Fighting Spirit' type 6 star statue.
Jonathan attacks with a barrage of punches, then lights his fist on fire to unleash a powerful attack on opponents. The cutscene animation is nearly identical to Jonathan's special attack in J-Stars Victory VS.