definitely can be very good. Needs a little word.
Very hard to play with a laptop... (not that that is a bad thing)
I might suggest not starting with numbers so it feels more like a typing game... or atleast switch from numbers to just letters and maybe bring numbers back later. I really like the idea of using mouse with right and keys with left. Almost feels like a shooter...
gets boring too quickly... I am just letting my turrets defend me right now... nope still nothing happening... You should have levels / waves that stop play and you can upgrade / place turrets etc... nice graphics and sound effects though