Get a cat with the special that brings the fishes nearly, put him in the 3th place, get a cat with all the best life items u have, put him first, get a cat with distance weapon and all the damage items u have, put him last
To defeat the last boss, get all melee and with as much life as u can
Get all the helmets, get the automatical weapons, get chaingun. stop hitting your get for money(just for life). Go as far as u can!! got to the 250
Try to kill all the lasers one's, and the upper one's, till floor 230~ the automatical weapons can take care of the down enemies