Yup, as I explained in my video which goes with the SycnVR submission, I intentionally participated in 2 overlapping jams so I could get feedback in the one which ended first (the VR Super Jam) to improve the project for the second, and generally test it for feasibility/playability. The game was designed with both jams' themes in mind, and each submission respected the time contstraints of each jam. It was actually a lot of fun to try and fit the doubled constraints!