This boss battle features two distinct enemies: Captain Jelly, a large, bouncy jelly robot, and the Sweet Commander, a smaller, flying robot that controls Captain Jelly.

Phase 1: Captain Jelly's Rampage
- Attack Pattern: Captain Jelly bounces around the arena, attempting to crush Sonic. The Sweet Commander flies above, occasionally dropping bombs or shooting lasers.
- Strategy: Your primary target is the Sweet Commander. Captain Jelly is invincible in this phase. Use Captain Jelly's bounces to your advantage. When Captain Jelly bounces high, use a Homing Attack on the Sweet Commander. You may need to bounce off Captain Jelly multiple times to gain enough height. Dodge the bombs and lasers from the Sweet Commander.
Phase 2: Sweet Commander's Direct Assault
- Attack Pattern: After taking a few hits, the Sweet Commander will become more aggressive, flying lower and attempting to ram Sonic. Captain Jelly might also become more erratic in its bounces.
- Strategy: Continue to target the Sweet Commander with Homing Attacks. It will be easier to hit now that it's flying lower. Be mindful of Captain Jelly's movements, as it can still deal damage. If you have the Boost, you can use it to quickly close the distance to the Sweet Commander or to escape Captain Jelly's bounces. Repeat until the Sweet Commander is defeated. Captain Jelly will then deflate.
Weakness: Sweet Commander. Reward: Progress to Starlight Carnival.