Way too easy. But it is fun!
Here are my suggestions:
"special words" - when you type them you gain a power up for a certain amount of time
"hard mode" - harder enemies
"bosses" - at the end of each level, have an enemy that could easily take out three specials
"wpm meter" - because i want to know how fast ive been typing :)
"more upgrades, more enemies, more units" - self explanatory
Other than that I love it! Cant wait to see more :)
Am i the only one who didnt have trouble with dragons at all? I had level 5 armor, and level 6 weapon. I used a divine and killed them instantly. Great game. Needs a sequel with a lot more features. Keep up the good work!