I love the take on the theme and the metroidvania structure! A really unique movement made it entertaining to get around - though the jumping felt strange to charge up without a visual, especially with the double jump
Cute art (and a clever way to get around a walk animation) but some fairly basic sound, giving the truck collision noise some pitch variance would have gone a long way
I defeated the big alien and got 'victory' but nothing happened?
Rescuing the cat was funny but threw me a bit to not get any reward (I figured the cat would let me have it at least haha)
Speech having multiple bubbles took me a while to figure out, could maybe have some pips on the bottom or something to indicate conversation progress
I stole the alien tech before talking about the big rock, so the game told me to go get something I already had
There's definitely some physics quirks (I can hold myself against a wall mid air, if you jump next to trucks they fly into the air with me)
All in all a really cute and creative entry!