Mega Shocked (./22):The Bus is a separate layer....If you aren't Init'ing that pic that is probably why it is not displaying....
Who cares about the bus?....make a background GFX for your game and use that....

Ideally only work with 3 assets....P1,P2, and 1 Background Scroller and move on from there...

Now I changed a background, and also expanded the walking field.

Fichier joint :