I've been talking to the Gotcha force Discord communities and after the help from Glass_Knuckle in order to create a code to quickly beat levels, I've found the most optimized route. This removes a few levels mentioned in the current route on the speedrun.com page, so it may be worth updating:

Note: A "chapter" is defined by the splash screen that plays with the triumphant music

CHAPTER 1

-Do all levels EXCEPT for "Defeat the flying death force" & "Training with Kakeru & Mana" (Those appear after defeating both "Death the Death Force unit!" levels at the top left of the map

-Do not fight Sho

The Flame Dragon boss level activates after doing all other levels. -Beat the Flame Dragon mission

CHAPTER 2

-Defeat the death force bodyguards (left of the map) -Select the same level that appears over it and instantly quit out (Fighting Orochi)

-Beat all missions that appear all over town

-Once new missions appear, beat all missions EXCEPT for the "Defeat the Death Force unit!" that appears on the same spot after beating the "Watch out! Demon Samurai" level and also do not beat the "Defeat the Death Force unit!" that appears on the same spot after beating the training with Kakeru & Usagi (Only appears if you do that level early)

-After that, defeat Orochi and then defeat the Dark Knight level that appears on the same spot after

CHAPTER 3

-Do all missions EXCEPT the two "Defeat the Death Force unit!" missions in the top left of the map (Little Hill & Serenity Street)

-You have to do the bottom "Defeat the Death Force unit!" mission when it appears as it reveals the Usagi ICBM tank level

-Once finishing Kotaro's Crash Course part 3, the next phase will be enabled. the Sho vs Orochi phase

-Beat Orochi & Tama, but instantly quit out the battle of battling Sho & Yuji

-Quit out of Sho & Yugi's battle again

-Do all missions that are in black or orange on the world map

-Do the showdown with the hero borgs

-Once you get the first death crystal, do the mission with Kakeru

-Co-operate with Sho to defeat Orochi again

-Beat Dragon's Den (top), Cockroach Parade (Mana), Knight Borg unit, Tank Borg unit, Death Force special unit (red level)

-Beat the Tsutomu level that appears after beating the Death Force special unit level

-Fight Sho and win

-Fight the deadly UFOs at the top of the map

-Beat the level that appears on the same spot "The Decisive Battle! Defeat the Cosmic Dragon!"

CHAPTER 4

-Beat all missions that appear all over town

-Beat all missions that don't have a partner associated with them EXCEPT FOR Showdown Hero Borgs, the 2nd Defeat the Machine Borgs in the Safaritown Market Place (The non-dark/shadow one) and defeat the death force. Those three levels are optional

-Beat the Cyber Death Dragon when it appears at the top of the map

CHAPTER 5

-Beat the Galactic Emperor

-Win

Saves a couple of minutes compared to the previous route mentioned and used on the Speedrun.com page. Extensive testing has been done to ensure every mission mentioned is mandatory

Would it work for NG+ too? I will try to learn it and apply for NG+ just in case, haha.

Thank's a lot !