Maze/adventure game!

At the beginning of each level, it's paused; press space to start. (You can also use space to pause and unpause during the game.)Use arrow keys or WASD to control the character. You collect keys and can unlock doors with them...one key per door. While paused, press r while paused to toggle maze mode. On maze mode, more walls and doors appear, but no monsters. On adventure mode, monsters appear and attack you, but there are also swords. Pick up a sword, face a monster, and press shift to kill it. But swords only have 3 uses. The yellow square is the goal.