I've been asked in another forum how I did the glow of the lasers/beams. It's actually a simple process so I will share also here:
The whole effect consists of only this texture multiple times.
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First I stretch it vertically and tint it red. This is the "base" of the beam.
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Then I add the same texture but with three important changes: it's wider, it's semitransparent and the Blending is set to Additive.
Finally I add the same texture again, but this time it's narrower, pure white and also set as Additive.
And there you go!
Also, take into account that I have a couple of postprocessing effects in top of the whole game, like CRT distorsion and Chromatic Aberration, that help to juice the game a little bit more.
