update 0.2.0

+added unlockable second level

+added unlockable endless map

+added new enemy: zombie

+added dead bodies for some singleplayer monsters

+fixed speed powerup

+parity between multiplayer and singleplayer death screens

+added keys and locked doors to singleplayer maps

+added reset all data button

+pause pauses whole game

Multiplayer version 0.3.3

+added player names in multiplayer

+added speed powerup drop in multiplayer

+added sliding to multiplayer (warning: janky animations! :P)

+fixed multiplayer pistol sound