An interesting approach to the 1v1 brawler, with two different characters who have differing movement and attack options adding a layer of depth and strategy to the game meaning you don't mindlessly spam one key. Considerations have been made for balancing and how the game plays for each individual player. I played your game on my own, however I did a variety of test cases and scenarios so I feel like I have tried to cover as much of your game as one person can. The game reminds me of Duck Game for some reason, perhaps the different weapon options creating differing playstyles. A range of characters with different mobility and attack options could be quite a unique premise if done right.
That being said, the graphics and visuals are rather rudimentary and could definitely benefit from either more complex animations or graphical improvements. There are plenty of aesthetically pretty games with very basic visuals so perhaps something could have been done for this title. In addition, there's little player response to damage or any indication of what attack the player is going to do. In games like street fighter, there is some telegraphed visual effect or animation that lets you know in advance (even briefly) what attack the player is going to do. Player feedback to what is going on is key for fast paced games, especially fighting games.
Overall this is a decent submission that could use with a lick of paint and some improvements to gameplay, but on the whole is predominantly functional and fairly simple to understand. Work on balancing and what was previously mentioned and you have the foundation for quite a strong game here. Good effort.