my guy is HUUUUGEEEEEE!

this was a fun and neat game to go through! really like this idea! you could probably take this and expand it in different ways! some examples would be adding different zombie units you can place down that can behave in different ways or having different level environments! very neat idea, even the core of what you have right now is pretty nice, where you have to strategically pick what upgrades you want to pick based on how the player is upgrading (my first run was all speed which only got me up to wave 5 xd). it gets to a point where the damage from big just one hit kills the enemy, but its still fun as it is right now! great work!

A fun little game!

I liked all the options!

Nice game concept - I enjoyed playing it.

In most levels after placing down the zombies, I did feel like I was just watching the game rather than playing it. Perhaps the zombies can have a spawn timer so you can only place them a slower frequency. 

Other than that - it's a great concept and there's definitely more that can be done with it. Great job!

Nice gameplay loop and you can add so many things on top of this to make this game later to make this more fun and engaging.