OH YES!
I have a question, well, 2.
1. Have you heard of the website Scratch (scratch.mit.edu)
2. If you have, can I use it to make my game?
SCRATCH IS SO AWSOME YES I USE IT TO MAKE GAMES HERE MY ACCOUNT
https://scratch.mit.edu/users/BlueCupMakers/
ok srry yes you can use it to make a game. just use this scratch to html and if you every want to make the game downloadable (after the jam) then i suggest make it a zip. here: https://sheeptester.github.io/htmlifier/
EDIT: you ask too many questions but it ok ask as many as you want