Good job! I feel a little bit dumb for taking so much time to figure out that a second shot was possible, but the concept is pretty good and I believe you should update your game indeed! I suggest having some kind of feedback that the player shot was a correct (maybe merging particles' colors?) and also some way to indicate what's the order of the shots. Maybe that's already explicit and I didn't get it. :P

Congratulations!

Interesting concept, but I was a bit confused at launch with how the cannon's rotation work, it doesn't feel intuitive (but I know how much rotation in Unity 2D can be a pain). Nonetheless it's a pretty solid entry, and I do like a lot the visual aspect of the game even if it's just squares and circles! Keep up the good work :D

I really like the concept, You should definitely expand upon it! 

Really clever and great idea! Also amazing job making this in three hours! At first I was a bit confused what I had to do. For some reason my mind thought that I head to combine the red and yellow bullet mid-air to make an 'orange bullet', which could then hit the orange box. It was confused that nothing happened after I did that and I pressed R to restart. After a few tries I figured out I could press spacebar again to make the orange gun shoot, which is when it clicked what I had to do. If you decide to continue development on this game this is something to make more clear I think. (Although for three hours I was impressed that there was a tutorial in the first place, so this is not really a criticism :P)

Otherwise this was a really great idea and very well executed! I definitely think you should continue working on this if you want to :D If you do, maybe some sound effects, screen shake and particles would help a lot for the game feel. Also it took me a few tries to figure out how to rotate the guns. At first I tried to make a cirular movement with my mouse to rotate it. Perhaps something to think about

Thanks a lot for making this! It was short, but I enjoyed it all the way :D

Nice visuals and puzzles, this game has a lot of potential if expanded.

My only feedback would be the controls make it a bit hard to rotate the guns when they are next to the screen border.

I really like the idea of this one.  Mixing colors is a neat idea.  I had a bit of trouble with the controls, sometimes finding it difficult to spin my color guns.  The graphics were simple but nice.  Good job!

Wow, this is so good. You solve riddles and also learn about colors. Yes, you should definitely update your game! Hitboxes seemed a bit off at times, but once you know where to hit, it fel great.