That took me a while to understand how to play, but I really liked it. It honestly reminded me of this board game Galaxy Trucker, where you build your own ship. Some constructive ideas - the pea shooter I think was not needed, if it was all a building style of a game I'd be happy. Add some sort of a powered barrier/shield, that can withstand hits from 1 direction, if powered. Add some sort of mechanic to the boss, as now it seems that while it takes me forever to kill it, I am going to win for sure. So don't know about time, but something that slightly complicates things. Well done! One of the better games I played so far!
Would love it if you can review my submission as well, thanks!