see this game works fine 
Not at all. It depends on where you take the specs. I just made an educated guess, basing to the specs in Wikipedia, that, as you can see, are different from the ones you posted:
* Crew: one, pilot
*
Length: 9.95 m (32 ft 8 in) *
Wingspan: 10.80 m (35 ft 5 in) *
Height: 3.94 m (13 ft 0 in) * Wing area: 20 m² (216 ft²)
*
Empty weight: 2,839 kg (6,259 lb) *
Loaded weight: 3,482 kg (7,676 lb) * Powerplant: 1× Mitsubishi MK4U-4 Kasei 26a 14-cylinder radial engine, 1,358 kW (1,820 hp)
Performance
*
Maximum speed: 615 km/h (382 mph) *
Range: 560 km (348 miles) * Service ceiling 11,250 m (36,910 ft)
* Rate of climb: 1,170 m/min (3,838 ft/min)
* Wing loading: 174 kg/m² (35 lb/ft²)
* Power/mass: 0.39 kW/kg (0.24 hp/lb)
Armament
* 4 × 20 mm Type 99-2 cannon in the wings, two in each wing, approx 200 rpg.
* 2 × 60 kg (132 lb) bombs or 2 × 200 litre drop tanks.
N1K1-J specs, for example where really similar.. the ones I found simply differed less from the ones you posted. Don't take me wrong, Bat, it's fun even in this form, but I'm afraid that it's too open to mistakes, given that specs are often discording, or not exactly matching. I still think it's better to use pictures.
EDIT: yep, what Milo said, too. Try with some more obscure plane from the '20s or the '30s and you'll see.
