All Secret Items:
For all secret items (including Langrisser and Alhazzard), try this. At the Buy
word press left, up, down, right, left, select, right, up, left, down, right,
select, circle

Level Select
At the Load screen, highlight any of the scenarios (not the first one) and then
press right, down, up, left, R1, square, start, select, triangle, circle.

Secret Items
At the Buy word press up, left, right, down, right, right, circle.

Test Mode
At the Load screen, highlight any of the scenarios (not the first one) and then
press up, down, up, down, left, right, select, circle.