All items
Rescue all of the prisoners in the trees on the prison camp stage. Move to the top left part of the stage and touch the top of the first seven trees on the left. A koala bear should crawl down from the trees. Climb the tree to hug him to obtain all of the items (including the Iron Cross of Luck)in the game.
Fast mode
Press Up, Down, Right, Right, I, I, II, Select, Run at the title screen. The number "2" will appear to confirm correct code entry.
Hover mode
Press Down, Up, Left, Left, II, II, I, Select, Run at the title screen. The number "3" will appear to confirm correct code entry. Press Jump during game play to hover.
Extra ammunition
Use the following steps to obtain extra ammunition and weapons.
50 shotgun rounds
Climb a fence after your strength is at "2". Press Right + I + II.
50 bazooka rounds
Climb a fence after your strength is at "2". Press Left + I+ II.
10 flash bombs
Climb a barricade when your strength is at "1". Press Up + Right + Run + II.
10 super grenades
Climb a barricade when your strength is at "1". Press Down + Left + Run + II.
50 flame thrower charges
Hold Up + I + II and press Run when parachuting at the start of levels 2 or 5.
Level select
Press II, I, I, II, I, II, II,I at the title screen. Then, use the D-pad to select one of the following levels:
Level Code
1 Up
2 Up/Right
3 Right
4 Down/Right
5 Down
6 Down/Left
7 Left
8 Up/Left
Sound test
Press Up, then hold I + II + Select at the title screen.
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