The "power ups"

Power-ups will give you a boost. They are dropped randomly from zombies you kill. They start at once you run over them, some of them are instant help while the rest last for 30 seconds.

Insta-Kill

Gives all the players powers to kill zombies instantly with any weapons or knife. You might want to get the insta-kill as soon as possible and while you have it try to only us your knife if there ain’t to many zombies.

Double Points

Double points is quite simple. Once you fetch it you will get double points for about everything you do in around 30 seconds. In the first rounds this is quite useful, but when you reach higher rounds it ain’t that important

Max Ammo

Max ammo is one of the most useful power ups in the game because it fills your ammo to the max. It also refills grenades. Max Ammo always occur after the last hell hound, these dogs often appear in every fifth round so I find it quite useful to save ammo so I’ll have four all the five rounds.

Nuke

The nuke basically burns all the zombies who has already spawned at the map. Zombies who haven’t spawned yet will not be affected and as you might understand it wouldn’t end the round unless if the remaining zombies on the map are the last ones in the round. It also gives all the players 400 points which is quite useful especially in the earlier rounds.

                              

Carpenter

Carpenter gives repair all the barriers on the map and sometimes give all the players 200 points. This is usefull if you need to get your breath back.

Fire Sale

Fire sale spawn a Mystery Box in almost all the rooms at the map. At the same time it lowers the price from 950 to 10 points. Only use this if you need any of the weapons mentioned in the different strategies. Raygun for example.