Ok so to play this game, what you are going to want to do is copy the text below:

##################
#%              %#
#%              %#
##              ##
##              ##
##              ##
##              ##
#P               #
####          ####
#  #          #  #
#  #          ####
####   !  !   #  #
#  #          ####
#  #          #  #
#  #   !  !   #  #
#  #          ####
####          #  #
#  #   !  !   ####
#  #   #  #   #  #
##################

P = Player
# = Brick
% = Box
! = Spring
. = JumpingSpring

// List syntax
ThingsThatFall = [ Player JumpingSpring ]

Sproingy = [ Spring JumpingSpring ]

// Accelerate down, like gravity. On everything in the list
{ ThingsThatFall } -> { DOWN ThingsThatFall }

// Move sideways with <LEFT> and <RIGHT> arrow keys
{ <HORIZONTAL> Player } -> { HORIZONTAL Player }

// Move up while pressing against a wall
HORIZONTAL { Player | Wall } -> { UP Player | Wall }

// Springs are Sproingy
DOWN { DOWN ThingsThatFall | Sproingy } -> { JUMP ThingsThatFall | JUMP JumpingSpring }
DOWN { DOWN JumpingSpring | Wall } -> { JUMP JumpingSpring | Wall }

// Win if touch box
{ Player | Box } -> { WIN Player | Box }

And paste it into here: https://waynetron.github.io/micro-gg/

And then click the "play" button on the top-right.

micro gg is the work of @WaynePetzler. Here's the tweet that made me find out about it.

Wanton nude streaker penguins are spreading terror in an important soccer match, that's why you need to shoot them with police officers to score goals and win the game. Has Serbian music.