Hej, I think this would be much better if, instead of unlocking customers by gettings ranks, which you will get anyway if you spend enough time playing, you would unlock them by getting archievements like : 90%+ for 1 pizza, 100% on each discipline one by one, 100% for one pizzas, 90% over one day, 95% over one day, other things like that.
Also you should be able to buy some things like a bell when a pizza is ready in the owen or stuff to entertain waiting customers that makes you gain some % on the waiting.
A good easy improvement would be being able to see the customer file from your save without playing.
Hej, wave 14 and already third time the 4 tanks... I'm also pissed with the top left window covering the towers, and the pilot talk you can't skip. Survival a bit too luck-based, I wish I could choose my weapon at start and not get any during the survival, I happen to take something I don't want and lower my chances because of that.. Also I don't like the next wave starting and the previous tank still exploding for 5 long seconds, it's annoying you can't see the bullets/missiles coming through it.