First of all, I want to preface this by saying - I don't enjoy sokoban that much. So I was prepared to quit halfway through this game. But what expected me was a work of genius - I really enjoyed the pulling mechanic and the later evil levels, elevating this work far beyond a simple puzzle into something tutely beautiful - I played through it all and thoroughly enjoyed the ending. The fact you got truckersFM integrated into the game earns a whole another level of respect from me as a developer.
Fantastic work!!!