Very nice game!
I think the minigames are ok, although they might get boring at some point, so it's still good to know that I can skip them with some upgrade.
I first felt cheated that some minigames don't give you time to understand what's going on before the timer runs out (e.g. the cash registers and the bombs) but I eventually liked it: it gives a sense of urgency and makes the first encounters with them difficult until you get it, which is satisfying.
Otherwise, I face an annoying bug. I've had my hideout button and the medstation section inside blinking since the beginning. I can't upgrade it because I have no soap and have not seen a single soap so far (I'm level 25 and only raid in the first 2 areas). Since I died during the tutorial, I suspect that I've lost a soap that may have been given to me at the start and will never be seen again. I suggest changing the requirements for the medstation to not need a unique item if that's the case.
Keep up with the good work :)