Thank you so much for playing and for the detailed feedback. That you spent 20k coins shows that you either spend a lot of time with the game or are rather good at it 😄maybe both.
1. Absolutely, we have this planned along with additional features that should improve the dash
2. I agree, it does make a difference but at the moment the balance is missing and we initially had a save game planned. Having to start from 0 every time you play makes the imbalance even harsher. Strength for example: you need 4 upgrades to make it only 3 slashes, that's why at the moment speed is the upgrade that get's you ahead the fastest. But that's something we need to fix.
3. see number two, yes we need to work on those and I also want to implement additional upgrades like dash recovery, run speed, etc.
4. I had this planned but was unable to implement it in time. That's what the minimap was meant to be for. At the moment you don't even need the minimap as there is no way to get lost and no back tracking. Once we have multiple exits and preferably additiona side ways you can explore the minimap will make more sense. We also want to implement special rooms like the healing fountain (currently healing chests) and shop (currently room with coin chests) and I have many more Ideas for rooms to discover, such as a secret minions bar you can hang out in.
Thank you again! It's a pleasure to receive so much positive and constructive feedback! :)