If you're successful, he'll grab hold to the tree. Aim a little above the tree and then launch Mario skyward.
You'll notice that the very top of a tree is visible over the floating island's side. Enter the hole at the top to load yourself into a cannon. Now head straight up the wooden ramp and head for the stone hill amid the grass. Talk to the pink Bob-omb to make the level's cannons accessible. If you beat the Koopa, he'll give you a Star. Quickly take the same path you did to defeat Big Bob-omb. He'll ask you if you're up for a race to the top of the mountain. Upon entering the level, you'll see a green Koopa to the left of the path. Be careful not to let him pick you up or he'll similarly throw you. To defeat Big Bob-omb, run behind him, swipe at him, and then throw him to the ground three times. Eventually, you'll make it to the top and come face to face with Big Bob-omb.
You'll then need to avoid the rolling balls coming down the summit. Head up the path and follow it as it passes by the Chain Chomp and over the bridge. You'll need to head to the top of the mountain. Without further ado, here's how to get all Stars at Bob-omb Battlefield. VPN Deals: Lifetime license for $16, monthly plans at $1 & more
