Its nice to see the sheriff acting less like a moronic twit and more like a normal person. I actually laughed once probably for the time this season, the fake leg kid. The miner play was so funny but in actual fact totally ridiculous and unbelievable - i guess they are trying to keep the "off the wall" brand of humour going but its kinda like a girl wearing too much makeup and cheap jewellery - if you gotta try that hard it just doesn't work.
Plot holes...if the alien can wipe peoples memory, they why did he kill Dr. Van der Spiegel on ep1 and just wipe his memory and if he had the strength of 6 gorillas, why did asta manage to knock over the radio satelite? These things just don't make sense.