Made before or after Ice Age 3?
There's a quite strange difference between Ice Age 3 and Ice Age 4: the first one has a brand new life counter, while the second one just retains the old one. Because of being an edited version of Chuck Rock, and also, because it keeps the original health counter from the official game, maybe this game was made before Ice Age 3. It wouldn't be a strange or illogical condition, for a pirate it's very important to earn money, so making two games from one would rise the percentage of sales. Maybe, to hide even more from which games were they based and in addition, to make them appear different, they also edited the life counter from Ice Age 3 and muted the titlescreen from Ice Age 4.