Wow, I can see the ambition immediately with this game. I absolutely love the idea of a water fight for summer. There is so much energy and effort put into the art and modeling for this game! I loved the main menu character select and dance/emote sections with your custom-rigged characters! Awesome!
For feedback, I would suggest you include soundFX and music. This is true for any game and it really feels "naked" without any sound whatsoever! I also would recommend locking the cursor, and also giving the player a notification to "press E" to interact with the water balloon minigame. Otherwise, great work and great concept!
Congratulations on submitting!