The farthest I had ever gotten in this game before last night was 6-4. And last night I made it farther than ever before, putting me in uncharted territory! I didn't beat World 6 until this morning. I kept track of my continues used but don't remember where all of them came from- it is likely that most of them were used in 6-4!
World 6
6-1: A little bit tricky, but fun. I'm a white guy if ever there's been one, but my sister was watching me play this level and said that I clearly have some asian in me. There's one awesome moment with four piranha plants all in a clump that looks pretty sweet if you time your jump right, and avoid narrow death! The extra life located in this level also helps a lot.
6-2: Underwater level, that means Bloopers :( Normally if I am Super Mario (big Mario) that helps me to get through the level without losing a life, and I can usually get an extra life here by finishing with 22 coins and the right amount of time left on the clock. The most annoying thing about this level is the game's tendency to suck you to your watery doom if you get too close to the bottom of the screen! Only had to use a continue on my first run of World 6.
6-3: Ugh, I hate this flying Cheep Cheep level. It's easy to die if you get too impatient (which I often am) and the jump at the end before the flagpole pretty much makes it impossible for me to bank an extra life. Used at least a couple continues here, and this level claimed at least seven or eight lives.
6-4: This is a hard level. It's a maze castle that requires some real platforming skills to beat. But the thing I respect about this level is that it doesn't have cheap difficulty: once you learn how to get to Bowser, you can consistently get to him. Video enclosed is from the SNES version of Lost Levels on All-Stars, but it will give you an idea of what this level is like. I probably had to try this level a dozen times!
Video:
Continues Used: 10
And now, we are all caught up! Hopefully I am able to beat Worlds 7 and 8 today :)
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http://www.gamefaqs.com/boards/228-movies-video-and-dvd/58949084