I found it really difficult and disorienting at first. I kept forgetting it wasn't like mario and other games like that - I was expecting the "Bad guys" to go through to the other side of the screen, but they turned around. So usually I would get hit twice! 🙃 Then I would forget about the wall in the middle. You could maybe darken that up some to make it stand out more. And I also forgot they could go across the whole screen since the red and blue guy couldn't. But.... then after playing it a bunch, it became easier. I became more familiar with it and began remembering how it works. It was a lot of fun. I kept playing over and over to see how well I could do. It is so hard!!! lol My highest score was a 21. And then I kept getting worse and worse lol so I gave up. One other thing I would note is the music is a little too... frantic. I had to turn my speakers off after a while to keep playing. I usually don't like games that don't have a way to "win" but I must say I enjoyed this one just trying to see how high I could score.
Good job! First game jam ever AND 10 hours only?!?! that's awesome! pat yourself on the back!!!