Research: Top 4 Super Mario Land

Super Mario Land plays similarly to the classic Super Mario Bros. for the Nintendo Entertainment System, with similar physics and the inability to backtrack to previous screens, as well as lacking any sort of save feature. One unique feature of the game was that at two points in the game, Mario drives two different vehicles, the Sky Pop and the Marine Pop, adding variety to the gameplay.

Also, the traditional Fire Flower power-up was slightly different in this game, instead being called the "Super Flower" and transforming Mario into Superball Mario. Instead of bouncing along the ground like regular fireballs, the superball always bounces at a diagonal angle, allowing it to ricochet around the entire playing field, bouncing off walls, blocks, even ceilings. The superball disappears when it hits an enemy, bounces off screen, or after a short time. The superball is also useful in that it collects coins as it touches them, allowing Superball Mario to collect coins that are out of his reach.

Hard Mode

After the game is completed, the game returns to the title screen. However, the mushroom cursor next to "Start" changes to an image of Mario's head, meaning that the player can play in Hard Mode. This is a harder version of the game which has a number of changes, some examples of which are more monsters in certain levels (some in levels that they weren't previously in) and more falling ceilings and stalactites in the indoor levels. Once this mode is completed, the player can access a level select. Due to the inability of Super Mario Land to save, however, Hard Mode and the level select will be lost as soon as the power to the Game Boy runs out or the player shuts the system off.

source: http://nintendo.wikia.com/wiki/Super_Mario_Land

source: google image