Finding Marlyin

Marlyin is a tiny clownfish in its own little happy world. Bubbly, chirpy, bouncy, puckish is Marlyin.
Suddenly came with a gush, fleet of predatory fishes. Left & Right & Up & Down went the tiny Marlyn and just missed out to be the prey.. But.. lost its way.
Marlyin's acquaintance have been dropping shells to mark a path to them.
Help Marlyin grab the shells and make its way back home.
Aim for the top positions on the LeaderBoard !