The Toryu was a Japanese heavy fighter. The Toryu fought the Flying Tiger. It was a bomber destroyer and was used as a long-range bomber escort.
Here's the specs for the Ko:
Crew: 2
Length: 36ft 1in
Wingspan: 49ft 4in
Height: 12ft 2in
Wing area: 344 feet squared
Empty weight: 8,820lbs
Loaded weight: 12,125lbs
Engines: 2 Mitsubishi Ha-102 14-cylinder radial engines, 1,050 hp each
Max speed: 336mph
Range: 1,243mph
Service ceiling: 32,800ft
Rate of climb: 2,300ft/min
Armament:
2 12.7mm machine guns in nose
1 20mm cannon in the belly
1 trainable 7.92mm machine gun in rear cabin

The Ko was used as an example. The Toryu would be an interesting bomber destroyer. The anti-ship model was able to carry 2 250kg bombs. Currently, there's no twin engine Japanese fighter in AH. How about the Bristol Beaufort, too?