New Super Mario Bros. 2: 2-A

This level costs 5 Star Coins to access. The totem poles from 2-2 are in the background. We take a platform on a path. The path will end shortly, so be sure to jump. After the second platform on a path, you'll find sturdy platforms with two levels. Take the lower one for a random coin block. The upper path leads two a forked path of platforms. Go left for the first Star Coin. When you come to a stable platform, use a Koopa shell to get the second Star Coin. You'll reach the midpoint and soon encounter some Fuzzies. Take another platform and go left when the path forks. You'll come across a P-Switch that turns blocks into coins, and vice versa. The third Star Coin is over the newly-formed brick blocks. You'll soon reach the flagpole.

Coin Total: 12,615

New Super Mario Bros.: 2-A

This alternate level is a water level. In this level is a Porcu-Puffer that will try to hit you with its spikes. It can be killed with fireballs, but will respawn after a while. All the while, we will be walking on logs. The thin ones will drop away after a short while. To get the first Star Coin, I recommend killing the Porcu-Puffer first, before dropping down to a lower set of logs where it is. After the first Star Coin are some spin springs so you can collect coins and avoid the Porcu-Puffer. We spring to the second Star Coin, under a log, near a pipe. Towards the end of this section, while spinning, bounce from the red Koopa on the grass to the ledge above with the yellow pipe. This leads to the red flag goal, which opens up access to the cannon. If we take the green pipe below near the red Koopa, we reach the goal, which leads to the pipe to the castle.