Obligatory Checkpoints and Slopes.
I'd like more level themes. I understand that not everything can be converted into the original game's style, but for everything else? Desert, Forest, Ice, Island, Mountain, Sky and Volcano themes would be great. On that note, if any fifth Super Mario game got included as DLC, I'd like it to be Super Mario Land 2. Also being able to use the All-Stars graphics for the 8-bit games would be cool.
Better integration of boss encounters would be great. Simply being able to beat the level end by defeating certain enemies could make this possible. That would be better than, say, the koopalings. Enemies like Boom Boom or the Reznors would also be possible to incorporate into regular stretches of levels.
Regular enemies of note include Fire Snakes, Pokeys, Urchins, Banzai Bill, and Hammer Bro variants.
Last, music. Give us more options for tracks when appropriate. Even music from other Mario games could be featured. Give the option to include the full array of NSMB songs for that style, SMB2 songs for SMB3, and so on.







