The easiest would probably be Ascension. Run in circles on the lander area next to Widow's Wine with a PaP'd RK5 with Blast Furnace or something, and a Thundergun for monkeys.

At launch, the game features three on-disc maps: "Voyage of Despair", which takes place on the RMS Titanic; "IX", which takes place in an Gladiatorial Arena in Roman Egypt; and "Blood of the Dead", a soft-remake of the Black Ops II map "Mob of the Dead", taking place once more in Alcatraz Federal Penitentiary.

In conclusion, Halloween is a holiday celebrated by many, but not all, religious groups. Some, like Jehovah's Witnesses and Seventh-day Adventists, avoid it due to concerns about its pagan origins and superstitions. Others, like Orthodox Jews and Muslims, abstain because it is not part of their religious traditions.

There are many religious people  Jehovah's Witnesses, some Jewish and Muslims  who don't celebrate the day who still manage to have fun. The origins of Halloween is one of the reasons why these individuals decide not to celebrate the day.