The gameplay isn't actually too slow!
wait, yes it is, but let me explain:
It's really slow and repetitive in the beginning. But by the second half of the game (when you have everything fully upgraded), it speeds up noticeably, making everything more challenging and more exciting. It IS very repetitive, but the mounting difficulty level makes it playable.
The music loop does need to be longer, and I really wish the upgrade trees were longer, but having your character capped (but the zombies still improving) makes the game harder-- in this case, better.
Needs a sequel.
I like the character drawings and animations , and i really like zombies but this game is very flawed:
1 Music needs to stop loping or change it up every level, the best option is to allow us to mute the music not the sounds overall.
2 Its to slow not enough action, give us more variances in zombies. Change their damage outputs, speed of movement, all correlating to their respective damage or speed. etc etc Of course also allow us to upgrade the character further to allow us to adjust to these changes.
3 options for more weapons always is nice, and ballistic weapons should have distance not just have a range of just in front of my character. LOL is he really that bad at aiming?
I think if you can do these things you could have a way better game. maybe even a gem.
I sugest that you chage te controls,make the animation fast and make guns have some range
overall not thegood, had some problems after changing weapons, and boring.