Eh,,
It is a good start for a game. I like the music, but its a bit too tricky when the spikes basically maul you if you don't jump at the right moment. The Smashers are excellently done in form and timing to make it plausible to get through it. The last criticism I have about this is that there occasionally are spikes and smashers that are too close together making it impossible to pass.
I give you 6/10 because it is pretty addicting despite its impossible nature.
P.S. I couldn't figure out the moral other than "don't stand on a conveyor belt in a factory."