Since the objective hasn't been very clear, here it is...
The Objective : Collect the crystals to open the door and use the mirrors to reflect the laser to kill the enemies.
A downloadable game for Windows
Use arrow keys to move around.
Left Ctrl to fire laser. Make sure not to be in the way.
Made a build of the first level. It is buggy but one can get the idea.
Also to replay the level, the game needs to be restarted.
I apologize for the bugs. Still learning how to code.
It is for PCs only.