After a long time this hack was approved, and playing a lot, I realized that for many reasons there were many things that could be improved. Seeing this, I decided to release a new hack update.
LEVEL 01 = START: BG change, and removal of some shelljumps.
LEVEL 02 = KABUM: Smoothing in the color palette.
LEVEL 03 = SPIN SHELL: Change in BG. Smoothing in the color palette.
LEVEL 04 = SBRAVATTI: No change
LEVEL 05 = RUN! RUN !: Color Palette Smoothing
LEVEL 06 = PLATFORMS: No changes
LEVEL 07 = PAIN'S FORTRESS: No change
LEVEL 08 = NIGHTMARE'S HOUSE: Minor changes and shelljump removal before checkpoint.
LEVEL 09 = MOLE JACOB: Some additions at the end of the phase.
LEVEL 10 = POLLUTED CAVE: Probably the most changed phase. Some of the shelljumps they had were replaced.
LEVEL 11 = PARADISE OF BULLETS: No change.
LEVEL 12 = DINO WORLD: Change in BG.
LEVEL 13 = STONE'S HOUSE: No change
LEVEL 14 = POISONOUS BLOCKS: Can you pass this level without a checkpoint?
LEVEL 15 = JAPA'S CLIMB: Few changes that made the phase perhaps more challenging.
LEVEL 16 = FINALLY: No change.