Visually impressive! Sadly my poor laptop couldn't run it as stable as these visuals deserve.
I encountered something similar to the last reviewer - the circle timer would sometimes end right as the creature finished a sentence.
I was also pressured to respond to several alien lines which never had questions in them. They felt like throwaway actions to have to answer a series of alien noises and sorta garbled the deeper "human" questions for me.
With such a time constraint, this is definitely a solid submission. Good work!