Operation R.E.P.T.I.L.E. - #LD35

You are an agent who works for a secret organization that prevents Extraterrestrial Biological Entity attacks coming from aliens called Reptillians.

These aliens can shapeshift their bodies and walk among humans almost unnoticed. But their shifting skills are not perfect, you can detect shifted aliens by observing their behaviour like color changing, snake tongue or rapdly turn around. You can mark people to make their behaviour more remarkable.

Use your taser to capture alien Repitilians when they are covered. If they morph to their real form, you must use your gun to kill them.