Use the arrow keys and hit the fireballs to kill Bowser. Look out for the enemies too though! Also, sometimes it takes two clicks of the flag to reset the game, especially after you win. Other than that, you are good to go! Have fun!
I hope you enjoy this somewhat glitchy, but totally awesome game! If Mario is stuck and can't get to the fireball, don't panic, just keep hitting the colored lines and he will go up eventually. Also, special thanks to JRHGames for some of the sprites, as they came from my all time favorite Scratch game, New Super Mario Bros for Scratch! Please check it out it is awesome! Thanks for viewing, and as always, enjoy!