The Legend of Zelda Link's Awakening

FAO-999-4C1     Infinite energy
09C-56B-E6E + 09C-74A-E6E       All items you get start at max power--when 
you get an item, you must have a space open (either A or B)
054-EE9-E6E     Get 5 rupees for each single rupee
324-EE9-E6E     Get 50 rupees for each single rupee
FF4-EE9-E6E     Get 255 rupees for each single rupee
FAF-BDA-4C1 + FAF-B2A-4C1       Infinite rupees (rupees aren't deducted 
for purchases you can afford)