There is a strategy for winning this game. Immobilize the zombies by stabbing them once or twice starting from the bottom zombies. Then immobilize all the remaining zombies one by one. Next kill all the zombies and win the level. You have to basically defend yourself against getting hit by the head of a zombie, where its hit-point is located.
Blamya: Game developer.
It easy to play and win the game if you follow all
the instructions carefully.
-The level number and the level index number must be the same.
Example: Level=1. Level index Number =1.
The level index number is shown in the panel when you select a particular
weapon, or update. Other wise you lose that level because the roller creep becomes invincible. However, you can always play the same level
again, after matching the above two numbers.
-I have tested the game several times and it is working OK.
-The number of hits to kill a creep is 14 in the first level, and 5
in the last level.