Hey this is in my top 5 for the jam now :) Great game! I really enjoyed having to strategize between upgrading my existing turrets or buying new ones. Made it to like level 11 or something.
Improvement idea: The lasers feel a little underpowered considering how expensive they are. But you did warn us that balancing was something you had to cram in at the end so I get it! We all have to make sacrifices to submit our games on time ;)