Voila j'ai trouvé, le dernier liens que tu m'a donné Xirius parle de ceux problème, masi apparement ce bug n'intervient pas tout le temps
"Cave Cat 3,000,000 BC
3.1- Climb up the ledges until you see an empty hole. Drop in and ride
the fish up. (it acts like a gyser boulder). Then, push a boulder into
the hole, ride up and exit.
3.2- This zone is a huge climb. Slow down in the upper-left for the
mallet key.
3.3- This boss has the most annoying glitch in the game- occasionally,
Odie jumps off-screen and you have to start over!!!!! Anyways, Odie not
only makes small rocks fall, but also large boulders too. Launch a
boulder into him, then throw a bone at him. Repeat 3 more times.
Donc c'est bien un bug du jeu... quel daube quand même
Pour ceux qui ne connaisse pas, c'est un excellent jeu de plate forme pour ma part !
"