Move Louie half way across the screen when starting any level. Pause game play and press B. If Louie is in the correct position, an extra shield will be added. The text "Shield Awarded" will appear at the bottom of the screen to confirm correct code entry.
Wait until "299" appears on the clock, pause game play, and press B. Note: This method may not work in higher game levels.
In level 2, there is a warp to level 7 in the stack of old tires. To get in, you need to play the Can Minigame to become small.
Locate a shop that has a red $5 money bag on the same screen. Collect the money, enter the shop, then exit. The money bag will appear again. Collect the money and repeat this procedure increase your funds. Buy extra lives for $35 each if time runs out during this trick. Up to nine shields at $10 each may also be collected with this procedure.More Scrapyard Dog Cheat Codes @ CheatListings