I remember playing something like this a while back, one of the flash games I guess, I don't remember the name. Idk where the idea was inspired from but imagine if it was the same one, how cool would that be.
The game needs a little bit more work tho:
First I understand the visuals and polish are not there because of the 10 day jam period.
Second when the ship is full load it is almost impossible to dodge the incoming projectiles, make it so they damage the cargo not the ship, so the game keeps running to the end.
One more thing I would like to add is if you plan to work on it further, add levels to reduce the repetitiveness of the game.
The idea is pretty solid and mechanics are also there, some polish and you'll have a great game.