All Star Coin Speedrun. This is the final castle of the game. The Star Coins are pretty easy to get. Now the boss on the other hand..

Bowser is just like he was from the old Super Mario Bros. and New Super Mario Bros. game. You need to wait for him to jump to run under him and land on the switch (Or just fly over him with Propeller). Then, it is revealed that Kamek was disguised as Peach to trick Mario. Then, he sprinkles dust over the castle room (Like he does with the other bosses) and makes Bowser extremely giant. This battle is more like a chase scene. You need to avoid all of the fireballs he spits out, along with enemies and lava. Plus you need to land safely on floating, moving platforms. Then, jump on the final switch to end Bowser's reign of terror once and for all! This is me playing.