It should be a PS4, Xbox One, and PC exclusive that takes advantage of the power of the latest home video game consoles, it should have freeflow combat, like the "Batman: Arkham" game series, it should be a free-roaming game with a huge map, the Turtle Lair should be big and completely roamable, and you should be able to use various Turtle vehicles(such as the Party Wagon, the Battle Shell, the Turtle Hauler, the Shellraiser, the Turtle Assault Van, the Shell Cycles, the Stealth Bike, the Patrol Buggy, the Turtle Blimp, and the Turtle Sub) to roam the city, the sewers, and the underwater areas around the city.

Note: In order to keep things simple, I will refer to controller buttons by their Playstation names.

There should be numerous unlockable characters to play as in story mode free-roaming(after finishing the story), such as Splinter, April O'Neil, Casey Jones, Shredder, Karai, and Krang(Kraang Prime).

The playable character selection screen & the drivable vehicle selection screen should be brought up by pressing the Select button, which should also be how map screens, the character bio selection screen, the upgrade selection screen, and the on/off tweak selection screen are brought up.

In scenarios where 2 characters are working together, a player should be able to switch which of the 2 characters they are playing as by pressing the Left D-Pad button. In scenarios where more than 2 characters are working together, a player should be able to switch which of the characters they are playing as by pressing the Left D-Pad button & a specific other button. For example, in a scenario where all 4 of the Turtles are working together, pressing the Left D-Pad button & the X button should switch to Leo, pressing the Left D-Pad button & the Square button should switch to Raph, pressing the Left D-Pad button & the Circle button should switch to Donnie, and pressing the Left D-Pad button & the Triangle button should switch to Mikey.

The game should have 4-player drop-in/drop-out co-op.

Tools(firing weapons, bladed weapons, bo staffs, shields, explosives, shurikens, etc) & special abilities(cloaking, forward charge attacks, etc) for characters & vehicles should be selected by pressing the Up D-Pad button and pressing the X button after highlighting the chosen tool or special ability.

All firing weapons should have rapid fire and bladed weapons, bo staffs, shields, & explosives should be able to be thrown rapidly, held by characters after being selected, and used while being held by pressing the Square button. Shurikens should also be rapidly usable.

Aiming should be done with the L2 button, while firing & throwing should be done with the R2 button.

Jumping should be done by pressing the X button and superjumping(which should be able to be done rapidly) for characters capable of it should be done by holding the X button.

Combat-rolling(which should be able to be done rapidly) should be done by holding the Circle button.

Pressing the R3 button should cause a character to hold up a shield from the tool selection while using a non-shield tool. When this feature is used, the character should be able to hit objects(such as enemies) with the shield by pressing the Circle button.

Holding the R3 button should cause a character to crouch.

Flight/hovering for characters & vehicles capable of it should be triggered by holding the L1 button.

While moving, superspeed(which should be infinitely usable) for characters & vehicles capable of it should be triggered by double-pressing the Triangle button.

Swinging via swinging/grappling tools should be done by repeatedly holding down & letting go of the R1 button.

After a special ability has been selected, it should be used by pressing the L1 button & the R1 button.

Characters & vehicles that are capable of wall-scaling and superspeed should be able to go superspeeding up a building by either moving toward it and double-pressing the Triangle button or double-pressing the Triangle button while wall-scaling. In addition to being able to start wall-scaling by superjumping at a building and being able to go superspeeding up a building by superjumping at it while already at superspeed, characters & vehicles should be able to start wall-scaling by pressing the Circle button while at a building.

Vehicle movement should be caused solely by using the left analog stick(like character movement) and should not require keeping a button held down.

There should be unlimited shurikens.

There should be unlockable upgrades & tweaks, such as new abilities, unlimited use of all tools & special abilities, invincibility, etc.

Even after 100% completion, players should still be able to freely roam around and fight thugs. After players beat the story mode for the first time, they should be able to use all of the gadgets and all of the upgrades they unlock in their first game save when they re-play the story mode, without the difficulty being raised. Also, after players beat the story mode for the first time, a mission selection option should be unlocked.

The cutscenes should be pausable, rewindable, and fast-forwardable.

After players beat the story mode for the first time, a quick-travel option should be unlocked.

Both 3rd-person & 1st-person perspectives should be usable, with customizable options like in the enhanced version of "Grand Theft Auto 5". Changing between 1st-person & 3rd-person perspectives and selecting which of the customizable options will be used should be done under "Options" in the pause menu. Obviously, the 1st-person perspective should turn off when a player's in a freeflow combat situation and then turn back on after the freeflow combat situation has ended.

The [main] vehicle used by a character should be summoned by pressing the Right D-Pad button. During story mode free-roaming, a player should be able to change which of a character's vehicles is summonable if that character has multiple usable vehicles in the game.

There should be cooperative gameplay and platforming inspired by the cooperative gameplay and platforming of the 2007 home console TMNT video game.

Whenever the Turtles are in dark areas, the eye spots on their bandanas should be white.

In the game, the phrases "Cowabunga!", "Booyakasha!", "It's ninja time!", "Go, green machine!", and "Turtle power!" should be used.

The following tracks should be featured in the game: The 2012 TMNT theme song, the 1987 TMNT theme song, the 2003 TMNT theme song, "T-U-R-T-L-E Power" by Partners In Kryme, "Ninja Rap" by Vanilla Ice, "Shell Shock" by Gym Class Heroes, "Shell Shocked" by Juicy J, Wiz Khalifa, Ty Dolla $ign, Kill The Noise, and Madsonik, the "TMNT"[1990] theme, "Turtle Rhapsody" by Orchestra On The Half Shell, and "9.95" by Spunkadelic.

Like in "Batman: Arkham Knight", there should be showcase galleries.

Shredder should be voiced by Scottie Ray.

Krang(Kraang Prime) should be voiced by Pat Fraley.

Splinter should be voiced by Kevin Clash.

Leonardo should be voiced by Michael Sinterniklaas, Michelangelo should be voiced by Wayne Grayson, Donatello should be voiced by Sam Riegel(Sam Regal), and Raphael should be voiced by Greg Abbey(Frank Frankson).

Casey Jones should be voiced by Marc Thompson.

Karai should be voiced by Karen Neill.

Baxter Stockman should be voiced by Scott Williams.

Hun should be voiced by Greg Carey.

Tatsu should be voiced by Michael McConnohie.

The facial designs of the Turtles should be a cross between their facial designs from "TMNT: Out of The Shadows", the current TMNT animated TV series, "TMNT"[2007], and "TMNT"[1990]. The feet of the Turtles should be like they are in the current TMNT animated TV series. Splinter's design should be based on his design from "TMNT"[1990].