what we call kalyug is basically what they call satan. They believe satan distracts people from god by luring people with wealth, pleasures etc. satan tried luring jesus in the garden but jesus stomped on satans head. we believe in this age of kalyug people will be distracted my materialistic things and pleasures. difference is whenever they struggle or go wrong they blame satan, while a Sikh is told to take his own responsibility ...
Also if you believe in the janam sakhis, then kalyug personified itself in a disgusting demonic form before Guru Nanak ji while holding his tongue in one hand and his private parts in the other, he introduced himself as kalyug and said that this is his age. When guru ji asked him why he has taken on this demonic form, kalyug replied by saying that in his age (kalyug) he will cause man to become lustful and commit sexual sins, and develop a taste for worldly things, which if you take a good look around it is very much true lol this is no different to what Christians believe satan does
we believe jamdoots or messengers of death punish you