Ammo boxes
When in the first region of Adventure mode, go down to the shooting range. At the 25 yard target range there will be a box of twelve shells. Watch throughout the levels for more hidden ammo boxes.
Hook fishMake sure that NumLk is on(may say something else on your keyboard), now when a fish is about to take your bait, hit the "2" button on the number pad if the arrow points straight down, "1" is down-left, "3" is down-right. These are not covered in the instructions .