i have over 700 rare diamonds that need spending =[ idea: "boss" enemies that initially spawn every hour after you get the research for them, they are much larger than the default enemy (~5x) and have 5,000% more hp than one of equal level, they drop 7,500% more and move a tiny bit slower, you can upgrade them to spawn at significantly faster speeds. also, an idea for a new tower: plasma tower, fires plasma that moves in a random path and pierces enemies with research, can also slow down enemies. you can reduce its randomness, increase its pierce count, and its slow down strength through upgrades available with research.
 "Auto Turret"){kind=icon}