Rainbow Vial

Note: This game was not made by Me alone, I had my sister do 90% of the art for me. You can find her Tumblr here if you'd like: https://starrynarwhale.tumblr.com/. 

Violence and hatred are spreading through the world... Thankfully, the people at project "Rainbow Vial" are here to help! They have a machine capable of wiping out all negative feelings in the world. However, they need 18 Rainbow Medicine to do so. Your job is to go out and collect them, to fuel the machine and end all hatred! But be warned, the evil Black Medicine will spark even more negativity if used in the machine... so stay clear of those!

Controls: [Arrow Keys] to move, and  [Up] to jump.

Lastly, please give me feedback on how I could improve this. I'm still new to all of this and any advice would be greatly appreciated! Thanks.

(As of February 2nd, 2021, this game has been updated to show the names of the developers, but nothing else has changed since its original release)