In this phase, Goopy grows about twice as large after eating a jellybean[1] and gains some brown eyebrows. His slam covers more ground. He reuses his two previous attacks, but they are more powerful and harder to dodge to some extent:

Goopy still bounces around the field like before, but his larger size now makes him harder to dodge.
Goopy stops bouncing, dons a red boxing glove on his hand, pulls his arm back, and punches at the player(s).
He takes slightly more time to bounce than he did his 