A few come to mind.
1)
A 2D complex Digimon fighting game with 3D models.
Not like the simple rumble arena games were you only have 5-6 moves to spam.
A game with inputs like the ones from Street Fighter Or King Of Fighters. Ex: [




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/

/

/

/

/

/

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/etc] ~ [





Buttons] ~ etc.
With only Mega/Burst Mode/Super Ultimate level Digimon such as these:
-With an adventure mode [similar to Digimon All-Star Rumble's Story Mode].
-Multiplayer mode.
-ONLINE Multiplayer.
-New DLC Digimon monthly releases to keep the game alive.
-On Ps4/X1.
2)
A 3D Bleach Fighting Game.
If Naruto & One Piece can do it,so can Bleach!
*A story mode for each arc: Soul Society Arc,Arrancar Arc,and Fullbring arc.
*Include the noticeable characters from each arc:
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Soul Society Arc: All Captains and Lieutenants.Ichigo and his friends,Urahara , and Yorouichi.
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Arrancar Arc: All the espada + Aizen,Tousen,and Gin.
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Fullbring Arc: All the fullbringers that stand out.
*
Traditional Versus mode: 1 vs 1
*
Team Battle Mode: 2 vs 2 to 5 vs 5.
*
A Tutorial & Training Mode :Explaining and teaching the basics and mechanics of the game.
*
Arcade Mode : (Murder a bunch of hollows;as you pass through stages,they get stronger.) Hollows -> Menos Grande ->Vasto Lords.
*
Soul Creation Mode: Create your own Soul Reaper/Arrancar/Fullbringer.
*
Online Mode: Rank Match + Player Match + Tournament holder.With lobbies up to 5 players.Most importantly,Excellent robust Netcode.
*
Fighting Mechanics (I'll be referring to the Play Station Controllers):
1)Basic button moves:
-Square: Horizontal hit (Can be comboed if pressed 3 times fast,extended combo if pressed extremely fast)
-Triangle: Vertical hit (Can be comboed if pressed 3 times fast,extended combo if pressed extremely fast)
-Circle: Kick (Can be comboed if pressed twice fast,extended if pressed extremely fast)
-Cross: Jump (Can jump twice.If pressed rapidly with a direction arrow,you can perform a flash step).
-R1: Guard
-R2:Guard Breaker:A strong move that breaks the opponent's guard.a bit slow but effective.
-L1:Boost: Used to boost a move if you have a meter fulfilled (Read below).
-L2:Taunt.
*Combining two buttons can perform signature moves. -Ex: (With Ichigo) Square + Triangle = Getsuga Tenshou. *Square + Cross = Grab. For all characters.
METERS: -Reiatsu Bar:Basically three small bars. You fill them while you're causing damage,or while you're being damaged.If you fulfill one bar,you can use it to boost a single move in damage and speed by pressing L1 while executing the move. If you have three Bars fulfilled,you can access your "ultimate form" depending on the character.Can be Bankai if shinigami,resurrection if Espada,etc.Which will hugely increase the speed and damage of moves,but stays for a little while.