A decent attempt at the genre, with some interesting "physics-like" fighting interactions with some visually appealing characters reminiscent of the Rayman series.
The game can feel frustratingly repetitive with the same characters and with no goal in mind and once you understand you can alternate punch and kick rapidly it becomes incredibly easy to go for a considerable amount of time. In addition, you can just walk off the sides of the map which is quite an easy fix. Visually, the game's environments could use some improvements and polish. Regarding Audio, its commendable that you put it in, but consider your audio levels as it was fairly uncomfortable to listen to.
Overall, the core gameplay was entirely serviceable and even does a good job with hit registration, etc. but could definitely benefit from playtesting and polishing. Good work.