I remember it almost clearly, it was Spyro the Dragon (the first one) on PS1. I played it almost all the time when I was young. Like, really young.
A bit of story: I remember that one day my PS1 fell on the floor (I don't remember exactly how). The console was fine, but the disk inside... not so much. If you guessed it, it was Spyro 1. And so I only had Spyro 2 & 3 while I had to wait for a new copy. I was so happy when I got it again, I played it until I finished the game. Even today, it remains my favorite game of all time.
Also some of the enemies in this game were scary at the time (I'm looking at you 3-1 Alpine Ridge, 3-2 High Caves, 4-2 Misty Bog and 5-1 Dark Passage).
Also, French voices.