Hi Callan !
Thank you for your detailed feedback, I agree with you about the gameplay : next planet should have give you a handgun so you could shoot aliens... but time was running fast ! :) I try to develop a Mouse Only game, so I participate to jams to train myself, maybe the final project would look like Petit Espace... who knows ? ;) (I'm just finishing an other jam if you want to try : https://itch.io/jam/games-factory/rate/369338 )
Thank you for your comments about the art, it's was the first time I scanned hand drawings + vector drawing for the colors and the animation. I must confess the spaceship is more than inspired from Nibbler's one in Futurama ;)
Anyway, it was a lot of fun to participate, I wish I could organize my time better next time you host a jam ! :)