Hey its the guy who made the art for "Spikes and Switches" here.
WOW. I'm so glad I got around to playing your game. I'm serious when I say that the enjoyment is rated 5/5. I rarely give games a 5/5 on any rating, but this one does it. The problem with other tower defense games, is that they start of so slow. They give you weaker weapons and treat you like a baby trying to overtly explain how it works. Like yeah... I think I know what a gun tower does. I like that this game just tells you what something does in the bottom left and lets you play the game. Its more fast paced as well, it doesn't try to go easy on you, and I'm happy for that. I'm probably gonna revisit this game, because its really fun. Also I love the combine mechanic.
I don't really have any criticisms other than I feel like the theme wasn't utilized much. Its like, yeah, every tower defense game involves death as an opportunity. Idk, it doesn't really matter. It's fun, I hope you get a good ranking.