The only problem is in the last screen, in the canibal camp. There are no spears at all and the player suddendly moved from right to left screen as magic, and after that the girl appeared and the canibal got away.
That's actually how Cannibal Camp worked in the Atari 2600 version. The player automatically advances (runs left) between the Boulder Field and Cannibal Camp, between the cannibals, and between the final cannibal and Lady Penelope. The cannibals do not raise and lower their spears, they do not throw spears and you cannot use any weapons against the cannibals. All you have to do is jump over them. The cannibals always get away.