Here is the unused/early content for Super Mario Logan: The Wacky Adventures.
- The game originally had five characters each with five stages, then a boss map to the final boss. This idea was scrapped because the developers wanted to create only 25 levels.
- The game was originally gonna have voice acting, but this was scrapped for unknown personal reasons.
- Five characters were originally in the game. This was changed to 8 as Treasure Games Inc. wanted to add more characters.
- The game originally had 3 collectibles in each level. This idea was left out.