I got a chance to play your game and it looks like Metroid in tower defense. There are few bugs and suggestions for the game that I spotted. First, when I shot to which it is not responsive when fire upon the enemies. It's like when I shot an enemy to when it appear it did not hit it. Maybe add a red fade-in as hit damage to the enemy. Next have the option to change the controller within the option menu because the only option to control the mouse and three key from keyboard can be difficult to the muscle memory. Include weapon upgrade to enhance the game play. Finally, for suggestion create a ring of enemies that are insect-like that appear and surround the totem. I hope these suggestions would help improve your game.