Cute little plateformer! As other said, it would be even more satisfying with better transitions between the levels, I thought I was dead the first time haha.

Adorable alien! More transitions and clearer end goals would go a long way to making this more polished.

Becomes a bit weird when guards are just floating heads. Makes one ask who is the real alien :D

Cool idea for a mechanic to suit the stealth theme with the guards :)