Hey there! Thanks for the suggestions. I'll take them into account for the next update.
Some of the bugs were found earlier and dealt with but it seems they are coming back.
Also, I'd be very glad if you could elaborate on the aiming issue. If you mean that the towers don't shoot sometimes, they indeed do, but sometimes they are so close to an enemy that you aren't able to see the bullet (will do something about it). However, if you mean that the towers don't aim, they point towards your cursor all the time and I haven't found the issue by myself.
Thanks for your comments and I'll make sure to make the game less buggy.