Title screen (Japanese version.)
The short intro shows the usual Mario story: princess is kidnapped by Bowser, etc., etc.
Bowser brings the princess into his Castle (TM)
Bowser's Castle. Note the walking enemies
Hehe, okay, I got it
This S thing is just a save point
Wandering around. Visible enemies
Jumping on logs
Battle menu is very simple. Each button corresponds to an action
Be careful, lava!..
Fighting Bowser. He talks trash, as usually
Battle! Mario's attack in progress
Level up! Choose your bonus
Boss battle. Mario is using his "Jump" technique
Exploring a city
Nice attention to detail here :)