Infinite Acid Spit: 
 First go to tank containg the Reaper and 3 head crabs and fire 
 at second control panel to left with the 'Shock gauntlets' a 
 scientist with a pink tie will shout "What is that thing doing 
 it might have shorted out the whole system,get that thing back 
 in its cage immeidiatly!" 2 scientist will then drag you back 
 to your cage but you should slash to stop them, now follow the 
 signs to the morgue, you are there you will see a scientist 
 being attacked by a reaper and a security guard trying to shoot 
 the 3 head crabs don't interveine as the security guard will 
 miss all the head crabs and shoot control panel (stand well 
 away as it will expode killing the security guard and the 
 head crabs) then you will notice a morgue draw slightly open 
 slash it and a disected alien will fall out feed off of it and 
 this will give you full health and acid armour and