It's a fun little game, particularly pleasant when bugs start coming in number and you can wipe them out with one swift swoop of your laser. I felt not very limited by the limitation, I never went into overheat and the upgrades are pretty cheap at the start so I didn't have to wait long for the laser to cool down. The art style is a bit bare, but I really like the Earth in the background and the flames left by the laser, it really adds to the feeling of power.