If you use only a purple character, the camera will twitch uncomfortably and the boss fight will come to a standstill because I will just forever knock down the boss's attack. The boss seems to have several attack animations, but in fact it's all the same essence, just get out of the circle in time. The circle narrows for a long time, which makes the boss fight feel too simple. The art style is not bad, simple but in one style, it was fun to play.