The fuel I picked up was used up by shooting. The level change happened once there was no more fuel in the level, but I never had to go back to the spaceship. I'm sorry if I made it more confusing ><
Viewing post in Empty Tank jam comments
ohhh I get it, the level changes (it’s more of a location change) just happens when you reach a certain place in the map (it’s my fault for not making that clear, sorry) and from the third level, you can come back to the first level to fill up the tank, again totally my fault. I’ll make the instructions/goal more clear in my subsequent projects. Thank you so much for the feedback!