i don't mind monkeys if they are like Scientist *i mean if they leave a power-up after u kill them* then i will love to have those monkeys coming after some rounds and leave some great perks (like Max Ammo, Fire Sale, Or the other which u can upgrade by 1000) they surely won't be that difficult to kill, so it would be fun killing them if they leave power upssss
if they don't leave anything then i would HATE them..