I want to submit a super meat boy and sonic unleashed demo speed run but it isn't so easy.

Are you looking for help with submitting runs for those games? Are you looking to create new categories for different types of runs for those games? Are you talking about creating Demo files that can run in the game engine for those games like the old Doom recordings for example? (can those games even support Demo files?) Are you just saying the games are hard to play/do runs of?

We need more information on exactly what you're having difficulty with so we can help you more if you need it, or direct you to those who can assist you.