World 4-5 (Super Mario Bros. 3)
From the Super Mario Wiki
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The player starts at the bottom of a pyramid made up of Giant Empty Blocks, with a Gargantua Koopa Troopa and a Colossal Koopa Paratroopa moving down it toward the player. On the other end of the pyramid is a ? Block with a power-up, which the player has to knock a Koopa Shell into it or the Brick Block underneath in order to collect it. Afterward is a large pipe with a Piranhacus Giganticus in it followed by a trio of Turtle Cannons firing Missile Bills. Next is a small platform with another Turtle Cannon and another pipe with a Piranhacus Giganticus that the player has to time their jump over. Located above the second Turtle Cannon afterward is a Brick Block that contains a beanstalk leading to a Warp Pipe high above, which leads to a secret room containing a Tanooki Suit and a P Switch. Afterward are more Turtle Cannons and Piranha Plants before the Warp Pipe leading to the goal.