First of all, thx for your answer and for taking times to check it.
Yesterday, I tested it on my CD32 with Terrible Fire 330. Seems weird that it doesn't work just for me but maybe my Frankeinmiga is guilty ;)
I will try it on my 1260 and under EAUE MorphOS too.
For the 0 score, it was after time out on the first level in 2 players mode (we couln't complete it 'cause of the first card). I will investigate this problem on my others computers too.
Thank you !