Thanks for the feedback. I have already modified the random spawner to only have 1 symbol spawning at a time. Still working out how to change the randomness of the numbers, I have an idea on how to make it work better for the player, but not 100% sure how to code it just yet. I do have to wait until the jam judging is done to upload the newer version though.
I have also added a save mechanic so the game keeps track of the players level so they don't have to start over every time.