This game is a combination of multiple mario games. Most things are similar to Super Mario Bros. However, the controls and the way to score points might be different. And only first level is available.
Instructions:
Use arrow keys to move Mario.
Press > to move right
Press < to move left
Press ^ to jump
In order to kill Goomba, you have to find the Fire-flower first. Once mario collides with the Fire-flower, Goomba will become invisible and then you may move to the next level. And watch out for that poisonous mushroom!