Level 28:
 - Screen 0: Flower appears behind the FG. Cut out the FG around the flower to show it.
 - Screen 0-1: Sloping tiles downwards don't work right.
 - Screen A-B: A little bit lacking in enemies here.
 - Screen F: Secondary Exit #000 should be on Screen 11.
 - Screen 14-15: A little bit lacking in enemies here.
 - Screen 18: Same as Screens 14-15 on top sloping path only.

Level 2:
 - Screen 4: 2nd Green Grass Small Mountain has a black line on it on the left side. Should be dark green.
 - Screen 5: Same as Screen 4 but on the 1st Mountain's Right side.
 - Screen 8: Same as Screens 4-5 but this time the front 2 mountains in the group of 5.
 - Screen B: One more Jumping Beetle (Sprite 85). If Big Mario, Mario can squeeze into the space above the Multiple Coins Box and move into the grass area. Just move this box up one or right one square.

Level C:
 - Dialogue (Mute): "Oh man," not "Oh man;". In the phrase "little harder I guess", insert a comma after "harder,"

Level 3D:
 - Screen 8: Note block turns Blue when touched.

Level 41:
 - Dialogue (Mysterious Toad): Period next to reckless is one space over.
 - Dialogue (Girl): "Well he's coming it seems" should be "Well, he's coming, it seems".
 - Dialogue (...): Period after Mushroom Kingdom.

Level 42:
 - Screen 5: Same as Level 2's Screens 4, 5, and 8. Front 3 mountains.

Level 44:
 - Screen 5: Some enemies would be nice here. Mario trips up on the tops of these hills.
 - Screens 8-A: Needs some enemies here.
 
Level 120 (Mushromm should be Mushroom in Level Name)
 - Dialogue (...): Lowercase "The" in "The Mysterious Toad".

Level 13C:
 - Dialogue (...): "Over the years;" should be "Over the years,". 
 - In the next set of dialogue with (...) "different then" should be "different than"; insert the word "it." after "he remembered"; and capitalize "And". 
 - In the next set of dialogue with (...) "such as;" should be "such as," and "it use to be" should be "it used to be".
 - In the next set of dialogue with (...) "toad's" should be "Toads" or "toads" and "Mushroom Kingdom were" should be "Mushroom Kingdom was".
 - Dialogue (Mysterious Toad): "We're here master." should be "We're here, master.".
 - Dialogue (...): "long black hair girl" should be "long black haired girl".
 - In the next set of dialogue with (...) "no older then himself" should be "no older than himself" and "but yet" should be "yet she"
 - Dialogue (...): Add a period after "the girl giggles"
 - Dialogue (Girl): "And I'm not" should have a comma after "And".
 - Dialogue (Mute): "Your ... not" should be "You're ... not". Hair should be not capitalized.
 - Dialogue (Ceil): "However that isn't" should be "However, that isn't".
 - Dialogue (...): "away from Mute" should have a period at the end.
 - Dialogue (Ceil): "no longer exit;" should be "no longer exit," and same for "his brother Luigi". Add a period at the end.
 - Dialogue (Ceil): "always saved the Mushroom kingdom", capitalize Kingdom.
 - In the next set of dialogue with (Ceil): "Everybody ages unfortunately Mute" should be "Everybody ages, unfortunately, Mute".
 - Dialogue (Mute): "to meet them;" should be "to meet them,"
 - Dialogue (Mute): Lowercase Hero in "A Hero?" and "you need a Hero".
 - Dialogue (Ceil): "every since Mario in everybody" should be "ever since Mario and everybody"
 - Dialogue (Ceil): "Every since he's arrived" should be "Ever since he's arrived"
 - In the next set of dialogue with (Ceil): "he's arrived I tell you" should be "he's arrived, I tell you". "Everything for the worst" should be "worse".
 - In the next set of dialogue with (Ceil): "was princess;" should be "was princess." with capitalized "And". "too pleased too see" should be "too pleased to see".
 - In the next set of dialogue with (Ceil): "stop him in his army" should be "stop him and his army". "Once in for all" should be "Once and for all". Add a comma after "but we", "Toad's", "alone".
 - Dialogue (Mute): "Look;" should be "Look,". "flattering in all" should be "flattering and all"
 - Dialogue (Ceil): "think your" should be "think you're". "after all" should have a comma at the end. Missing final period.
 - Dialogue (...): "to think Ceil's request over", should be "to think over Ceil's request".
 - Dialogue (Ceil): Footsteps is one word.
 - Dialogue (Mute): "By the way;" should be "By the way,"
 - Dialogue (Ceil): "Well we all" should be "Well, we all". grantee? should be "Guarantee". "like it how it does now" should be "like how it is now" 
 - Dialogue (Ceil): "captured or fled" should be "captured or has fled".
 - Dialogue (Ceil): "Anyways" should have a comma after it. "to assist you; me and my assistant Lumine" should be "to assist you, my assistant, Lumine, and me."
 - Dialogue (Ceil): "Well" should have a comma after it.
 - Dialogue (Ceil): "Koopa Guardian;" should be "Koopa Guardian,"
 - Dialogue (Mute): "sounds like a plan I guess" should be "sounds like a plan, I guess".