The fundamentals are there, but without some interesting twist that makes it unique it's not that satisfying to play. Things like hit detection and movement are fine already, but without feedback like hitstop and SFX, the combat (the most important part of the game) feels disconnected and boring. Your character has a nice movepool to choose from, but it was also difficult to tell whether some attacks were even effective. I'm not sure if anything took damage from the jack o'lantern's RMB attack.
The theme fits only marginally for what is essentially switching between weapons, but I did notice that the spritework of the character and their masks were given extra attention.