Thank you very much, that you have taken the time to write such perfect feedback!
In the next Update on itch.io i will include, that you have 2 of each "Cheat Item", every time you start a new round.
The speed change button is a really good point, i will include this in the next update.
I'm thinking a lot about how i can implement a more interesting strategic part by making some towers more special. In some of the next updates there will be new possibilities like frost, poison or area damage. But I haven't decided how I'm going to implement it yet. I want to give the player more choices without weakening the poker part too much.