Cool to see a Monogame entry, unfortunately the pong game was the only one I could actually open. It looks like the issue is the input logic running every frame, I'd recommend storing the keyboard state from one update to the next so you can compare to see if a new key is pressed.

Cute game I think its a nice project for a minijam. I think the fact that escape is both the exit and enter button really glitches the game and it doesnt serve quite the intended purpose. Due to that I was sadly unable to get into two of the four levels as it immediatly quit after starting. Also im unsure if the ai in the gravity pong game can lose. Nonetheless a great game and quiet a fun experience.