Yes my friends.. It's here, the Day to Night system is about 99% done and I'm ready to show it off.
The Explanation
Alright kiddies.. It started out as simple overworld edit, changing from the special world palette and back, but now it's far larger and far awesomer! Now, instead of just day and night, There is Morning, Day, Sunset, Night, and then it repeats. During each time period, EVERY LEVEL IS AFFECTED, so since the third level's at night, after completing the second level, the overworld becomes night time, and every level is at night, a night HDMA effect, and a night palette. Same for every other period of time (Day, Sunset, Morning), except using the corresponding HDMA/Palette. The overworld also has these 4 periods of time. Oh, and on a side note, I'll show a full, Lunar Magic screenshot of the overworld (it doesn't look as pretty without the HDMA though). Another sidenote, I've added DKC2's navigational arrows

.
EDIT: If you're too lazy to read, or don't fully get it, each time you beat a level, time passes, causing the time of day to change.
The Pictures
Day

Sunset

Night

Morning
A New Beginning - Day

A New Beginning - Evening

Level 2 - Morning (It lost it's name as Sunset Sprint, because every level can be at sunset now, so it's currently untitled)

Level 2 - Evening

Puzzle Palace - Morning (I haven't touched this in a while so it still has big coins rather than red ones :o)

Puzzle Palace - Night
Full Overworld - Daytime

Full Overworld - Every other time (No HDMA's)
The Conclusion
Uh.. Oops.. I forgot to think this part out while I was uploading/taking the screenshots D:. Basically, I worked pretty damn hard on this and with a little help from K3fka and Roy, this was made possible

. Oh, and I really hope everyone likes this, because like I said, I put a lot of time and effort into this.
ENJOY!