Bio-Revenge (UPD Testing!)

A Short, Fun Game on All-out made to be unique. Slightly hard, but easy. U like other Simulator or Highly Detailed games on this Platform. Bio-Revenge is a Short game made for both Fun and Short Content, and Feeling the Pain of having all 3 monsters chasing you when you only need 1 more digit of the code to get revenge on those nasty monsters. Even while knowing they only can attack once per second. I really hope you like Bio-Revenge, and if you have any ideas. Tell me!

Help:
Your main goal is to collect 4 pieces of paper scattered across the map each markes with a single number on it. Collect all 4 papers and open the safe to grab a GUN. Kill all the monsters for revenge and leave.