Pretty fun, and completely topical! You did great with the graphics and composed a chiptune that went pretty well with them. It took me three tries to get the hang of the gameplay itself and get to the "end". I suppose not being able to see the whole field was part of the challenge, but I wish you had included sound effects to help on keeping track of what was going on on the other side. I also wish the dev could do something when the door and tower are fully healed, like work to get more money. I'm looking forward to seeing more from you!

Nice mix of a Tower Defense and an Action game.
I think it could need some work on the UI so you are more easily able to tell what exactly you are upgrading and feedback in general (somehow it seems the men in suits are invincible for some time before your defenses can touch them, or is the damage just not displayed until their health drops below a certain level?).
I'd be really interested in a more polished Post-LD version of this.