Enter the options screen while at the Soulin Monster ranch and highlight the "Buy Monster" selection. Then, press R2, R1, L2, L1, R1, R2, L1, L2(2).
At the options screen, press R2, L1, R1, L2, R2, L1, R1, L2(2).
At the title screen, press L2, R1, L1, R2, L2, R1, L1, R2(2).
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