RTABC Guide/Plunder in the Sunken Ship
This is a guide for how to beat the star Plunder in the Sunken Ship with 0 A presses in an RTABC run.
Method
This method is intermediate difficulty. Newer players may have some difficulty. Start by getting into the water and carefully punch-swimming to an area above the sunken ship. Once directly above it, swim downwards (using B and not A, obviously). This next part is tricky because of the risk of drowning. Carefully move down to the eel, then, once it has your attention, move back to the surface as quickly as possible. Once you've caught your breath, both figuratively and literally, head back down to the ship. The eel should be out and about, giving you an opening to enter the ship. It's highly advised to grab some coins from the ring near the entrance, as they restore your health. Once inside the ship, still using B to slowly swim, hit the chests in the proper order. If you ever feel the need to catch a breath, just swim slightly upwards into the bubbles' disproportionately large radii. They will fully restore your health. Once the water level starts to drop, swim as fast as you can without pressing A to the platforms. What happens next is rather tedious, so be patient. You must frame walk from platform to platform, and while sliding down won't ruin your run, you may have to start all over though. Don't be disheartened though; soon you'll reach the top, frame walk into the seam to get high above the box. Ground pound while near it to bust the box and reveal the star. Once again, you will have to fall from above and ground pound to collect the star.