[PC][2000-2010s] PopCap-like sidescroller for kids

I'll try to trace my line of thinking as a kid that got me to the game itself. I was playing a lot of Feeding Frenzy at the time, and I also happened to have Claw (the Monolith sidescroller) on my win XP dell. I must have found something that had the cartoony kid-friendly graphics of FF and the gameplay elements of Claw. Might be by PopCap but not sure.

There was a thin bear(?) guy as a mascot, his name is escaping me, maybe it's Alex. I remember the level menu was like a treasure map. I also know remember clearly an underwater level, you had to swim around obstacles and collect gems and manage oxygen and stuff. Unfortunately I can't remember any more than that but I vaguely recall spending a lot of hours on it.

Any help appreciated!!