My feedback for Inside Xplorers:
What your game does well:
The game is easy, allowing the player to enjoy the sights of each country/place.
What your game doesn't do well:
The game advises the player to drive slow, but the controls for driving only allow for one speed. This undermines the developer's intention for the player to relax and enjoy the ride.
There isn't much execution of the theme 'inside out' here. Even from the explanation it didn't feel as though I was going in or coming out of anything. The play experience felt like a linear racing game.
Areas of Opportunity:
If the intention is for the player to cruise in/out of countries, some visual indicator could help here. The transitions right now feel like these countries are all the same place. I think a great opportunity is to 'show' the transition from going out a country and inside another.
I recommend adding gamepad support to this game if you want the player to be able to drive slow or fast, based on preference. Digital readers like keyboard keys are never good for this.
I hope this feedback helps!