You should be able to click on the monsters to see their health. You should also be able to click on the towers to see their damage, rate of fire, etc. Just a few ideas.
Wow. When I did level 8, there were 2 giant penguins! I had to shower them with gasoline and set them on fire to knock them out! On level 9 and 10, there was this giant 100-level pit! I had to go through things like a giant pizza, a vertical roller coaster drop, and an evil hunts ketchup skeleton! It was a looong trip down to the bottom. When I hit level 99, the flying spawn boss that flew away before was right in front of me! I had to build a swarm tower to knock it down and I had to build a bash tower to finish it off! When I reached the bottom of the pit, there was this giant bone dragon! Someone else tried to help me and A1DZMAN kill it, but all he did was just put it to sleep. A1DZ summoned a bulldog and we finished it off! Actually, it just ran away really rally fast, but close enough! We got to go to a special room with awesome stuff and we won! ...for now at least
BEST. GAME. EVER. The level 5 flying spawn bosses were hard, but when I built a hotel on Grenade avenue, one of them got bankrupt and the other ran away! On level 6, the giant greg avatar almost squished me, and when the real greg came and banned AlisonClaire, I lol'd. Level 7 is pretty hard. I picked the tomato instead of the cow twice and got electrocuted and nuked! Finally, I figured out to ride the cow and let him squish the tomato! Then, it rained KETCHUP! I am going to reach level 8 soon. This is the best game on kongregate. Period.
Maybe there should be a challenge mode where you have to do something when its time to level up and if you do it wrong, you have to start the level over again! Maybe something simple, nothing at Kuzzle-difficulty!