The game's pixel art style is simple but creates charming visuals. The core concept of building a tower is straightforward to grasp. However, the current gameplay loop feels a bit repetitive, lacking depth and variety. Introducing more gameplay elements, such as resource management, challenges, or upgrades, could add depth and replayability. I have run into the issue of being unable to upgrade to the second level. Also, the game was exported as a DEBUG exe - check godot documentation to find out more. Other than that, congrats on your first game and keep up the good work!