Jump on the character to kill them and get revenge on Mario.
Koopa's friend Goomba was having a birthday party when suddenly, Mario and his friends crashed into the party and smashed everyone around. Now, Koopa has only one option left, REVENGE! You've to help Koopa in this mission and defeat all the enemies!!! While you're on the map your cursor will turn into Koopa. Place his feet over the level you would like to play and click on it. You can only play one level at the start, but every time you beat a level you haven't beaten before, you'll unlock the next level. Somewhere near the middle of the level you'll find a small flagpole and when you touch it the flag will rise. After you've touched the flagpole if you die you'll have the option to either go to the map or restart from the flagpole. Kill all the enemies that you find along the way and don't forget to collect the shells and fire power. At the end of the level is a large flagpole. Touch this one to complete the level. Go through the instructions in the game to learn more about the gameplay.