lol... gets quite difficult once the 4th game is introduced.
two players playing this would achieve a good score. First player takes care of WASD and space and the other takes the arrow keys.
"This monster have though HP and has REGENERATION ability which make them can recover hp over time."
Now, I'm no English professor or anything, but that my friend is poor English.
The game, however, I like ... I'll give it a fair 3/5
I've beaten all all levels from 1-30 in either the first or second try (maybe third try once or twice). In short, this game is kinda easy. Gonna finish other levels later.