Truckminator

I feel as though there's no bonus to hitting zombies going super fast or just tapping into them. Maybe factoring that in would make running zombies over more useful?

Nice! I like it a lot better with weaker/faster zombies. It feels more like an action game now. I don't know if this is what you would have in mind for this game, but if you added a money system with upgrades you can buy, I think the game could be more popular. You could keep the achievment upgrades, but maybe add many more weapon/armor options that you can buy with money. Also, maybe power-ups that spawn from boxes/barrels that you destroy, such as brief invincibility, no weapon heat up for X seconds, speed bonus, etc. People here love to buy upgrades in games, so I think that would make your game very popular.

Pretty good but after I got some unlocks from the first level I've now finished the next 3 (2 graveyards and the first of each other) and haven't unlocked anything new. I think having unlocks on each level passed would make the player feel more sense of achievment and as such want to continue playing.

I haven't played that much into the game, but so far my impression is that the levels are too long/boring/repetitive. I think either cutting down the number of zombies per level, or make them die more easily. In this kind of game you want to slaughter mass numbers of zombies somewhat quickly (the weak ones anyway), not run over one about 5 times to kill it.

mute button is bit glitchy (when you mute it and start playing and then go back it will be unmuted)