The art is very cute, and I love the silly animations!
Ultimately the game was fairly easy because I could just... swing my mouse to the right while holding left click, swing my mouse to the left while holding right click, repeat. I didn't need to pay attention to the enemies at all because I got rid of them basically instantly.
Some more enemy types would help improve the gameplay. If there was an enemy that was harder to shake off, you might have an incentive to leave one arm alone for a little bit rather than just alternating back and forth constantly.
I wish the audio was more intense, especially the sound effects for shaking your arms, it would help sell the weight better!