Prehistorik

To get to the secret room don't Jump over the first wall. Jump inside it and fall down into the secret room! Later on the first level, look out for a ladder near some water which leads up to a platform containing an egg. Climb the ladder, take the egg, then go left into the water to find the submarine room.

Go to the third screen of level three and jump forward hitting empty space. The hidden food should now appear after killing the big, green dinosaur on left.