I updated a few scenes and some specific stuff, in order to make the game easier, and also deliver a better player experience. I will list all of the changes in order:
-Menu- Selecting the options now has sound effects. Player now can only start the game if he's at the central screen (with the Leggatana art)

-LEVEL 1 - Floor 3 now has easier platformer.

-SECRET BOSS- Now shows a visual effect when being damage (turns red for a splitsecond), and shows an angry emote a few seconds  before getting up. Size of the scene increased, so that when camera shaking happens, no trash gets pulled from VRAM. 

-LEVEL2- Much easier platform at Floor 2.

-LEVEL3- No changes.

-LEVEL4- No changes.

-BOSS ROBOT- Now shows a visual effect when being damage (turns red for a splitsecond).Size of the scene increased, so that when camera shaking happens, no trash gets pulled from VRAM.

-LEVEL 5- No changes.

-LEVEL 6- Decreased a lot of the spinning Saws speed.

-LEVEL 7- At positions that have turrets, now the ceilling height has increased, making jumping over it's projectiles a viable option. At the first moving block/platform, the ceilling is also higher, granting the player more comfort when trying to reach it.

-LEVEL 8- At Floor 1, the spikes at TSURUGI entrance are now farther, and it has now minus 1 spike, making it easier to jump. The double spike wall, now has a lower height, so that the player doesn't hit his head on the invisible ceilling collision (this obstacle was the hardest on the game, and now it is a LOT easier)

-FINAL BOSS (HEART)- Now shows a visual effect when being damage (turns red for a splitsecond).

-ENDINGS- Had a visual glitch that didn't show the ending correctly ("2/3" or "1/3" for example), now has been corrected.