To be honest, I hope to see more games copy minecraft. It is a great idea and the minecraft dev has already made millions on it. There is huge potential in that genre.
The game would be much better if the move all units forward option did not apply to the hero. The hardest part of the game is having to constantly micromange him out of harms way.
I like the idea of the linked plasmid gun, but with the slower rate of fire and without the 360 swivel, even 2 upgraded plasmid guns are not a sufficient primary weapon.
Plasma guns are worthless against armored creatures introduced in mountain pass.
I still like the Dual MG more, networked Dual MG's would pwn.
Next, the restart level does not work for me. If you buy the wrong gun, you are hosed. Even when I exit and come back my gun is retained.
Still 5/5 though.
the initial position of the first few towers is the only hard part because there is so much area to cover and so little cash, but once you get going it is easy though.
I thought it was pretty cool. The controls took a bit of getting used to because so many other things use the WASD keys for direction. I know S is used for jump, but space bar could be jump and p could be pause or something. There could also be a little pause icon next to the health meter people could click with the mouse.
For people that play lots of other games I think those controls would be easier without sort of mentally switching gears for the controls.
Nice work though, I thought the game was pretty cool.