your mouse is your aim: use it to cast the curse that stops the enemy bats and dragons from getting to the bottom edge of the screen, and if they reach there, you lose a life. press space to cast a slow charm, which slows or stops enemies. you can use the slow charm once every twenty seconds, and use it when there are enemies that are close to the edge. as your score increases, the game's speed does too. good luck, try to stay for a score of 100.
i have special thanks to award to the game kingdom rush, made by ironhide game studios, to the scratch ideas book coding games in scratch, and to my parents and siblings for helping me a lot.