Play as Nihonmaru:

Beat arcade mode with all four characters to unlock Nihonmaru.

Haul an Ice Cream Truck:

H hold L + R + X + A + B + Y + Start at the same time to haul ice cream

truck on the pick a trailer screen.

Unock the 6th Parking Level:

Beat each of the four parking levels to unlock an additional parking level.

Beat the bonus parking level to unlock a sixth parking level.

GameShark Codes

(M) Must Be First
9c5d88f8

(M) Must Be Last
245eeca9

Max Cash
6a8c763205f5e0ff

Must Be On
2458c4a900000002

Inf. Time Arcade
f294b9a300000009
331ea94800000009

Inf. Time Parking
c8caf77e00000009
8c9c7a4800000009
a6ade1da00000009

Time 0:00:00 Parking
d6ca9bfa00000009

Inf. Time Score Attack
4b5aced700000009
     

Thanks to Revolution readers bob brown, Sid Alliev, GORDY and Luis Arroyo!