Hey, thanks for the feedback. I do want to say that I make the Snake portion way too late at night, and I made a decently large mistake with coding it that forces the apple's position to be 0, 0 instead of the intended random position.
For the Tetris bit, I honestly can't blame you, and in the next update I might just remove it entirely until I can find a good fix. I might end up recoding everything if I do decide to leave it in. If I do choose to try and fix it, then I will make it more unique from the original game.
For the Audio, there is none as of now, I just didn't give myself enough time for that, then for the pacing I was thinking of making a bit faster paced (especially on the Pong section) or made slower through some sort of life system.
Thanks for the feedback, and I wish you luck with whatever you do next!