Pretty simple game, I've got nothing against it although i do have a few notes:
1-there doesn't seem to be a consistent art resolution in the game, each enemy looks way different from the last and even the background and level don't look like they fit it
2-the character controls fine but since the game is top-down and you'll be moving while moving alot, it would be better imo if the direction of the swing was based on the mouses location rather than the direction of moving
3- for the love of god add a volume slider 😭 i turned on the game and got my ears blasted
4-lastly, try to be on-theme, the main menu looks good but it doesnt have the game name nor anything to do with the game + the game itself doesn't have much connection to 'blood wave' other than the enemies dieing with blood
overall this game does things right for a first time, the game loop is good with no issue and the enemies and player have responsive animations and there are powerups in the game, for 14 days this game is pretty good
that's all i have to say, good luck on your development journey <3