I played on my own, but it was still quite fun and chaotic to control! I really liked how colliding, instead of being an instant game over, gave you a timer; it encourages out of control panic instead of having to be super meticulous. I liked the soundtrack, and the art is hilarious.
I think I had a problem with some of the screens; they seemed to not fit in my screen? For example I couldn't see the "press space to play" in the main menu. This might be due to my PC's setup. Thankfully there was no problem with the gameplay screens.
I liked the idea that the stroke strength depended on the rhythm at which you pressed the two buttons. It felt a bit weird that rowing from one side only pushed you quite far forwards, though it might be important when it's two different players.
The level design is varied and give nice fun challenges, and the fact that each level isn't too long makes losing fun instead of punishing. I really like the design behind this game; great job!