I absolutely love Sokoban games! Your team made a game I'm keen to finish to the end, and I'm excited to see if you end up releasing more levels. I've stopped at level 7 for now, got other games to judge for now, but definitely consider me a repeat customer! I'll finish this one. Thanks for the awesome puzzling :)
PS: The death sound is a nice bit of comedic timing for me. I've at times put the bird in a silly spot and just hear the defeating 'kathunk' of an ally across the level dying :P