:8006E88C FFFF8006E88E FFFF8006E890 FFFF8006E892 FFFF (This sequence forces the game to recognize all items as 'owned' in your storage.)
# Fill weapon slots 0–95 with 99 of each item (for address range 0x009B98D0 to 0x009B9B0F) 3009B98D 0063 3009B98E 0063 ... (Repeated) front+mission+3+gameshark+codes+all+weapon
Most reliable codes are for infinite money and shop stocks all parts/weapons instead of a direct “all weapons” code. front+mission+3+gameshark+codes+all+weapon