Nice, interesting core mechanic! It unifies attack and strategic movement and limits the launch by only firing one boomerang. I'm glad you made a complete guide level (but I did get stuck on the invincible Dash section, which forced me to quit and re-enter to play the endless level). Besides, I'm curious about what would happen if the player's WASD movement were removed and the boomerang or the player's own movement ability were enhanced. All in all, well done!