Visit slums and shoot anything that moves.
Canis cars are dangerous because they carry many included toxins,destroy them immediately, do not be burlao
Enemies:
Shoot the giant pot, the boiler plants (when they explode get aburlao interior) and memes.
Each enemy you kill gives you small doses of brain recovery, inaddition to weapons, level and lives.
Your weapon improvement as you level. Use grenades wisely.
Beware of memes, masks, cani car and boiler plants are dangerousand take away a life.
Good luck and get them.