Woah XD. Thats amazing. I never thought of gameplay that way.
I also took the entire first day brainstorming and had like 14-ish ideas.
I mixwd two at the end for my final idea but I think scope creep got the better of me (Originally the idea was like a an arcade tower and you had to lose games to go from the top all the way down to level 0 (The leveling system wasnt logical) then I switched to a leaderboard style (each of the 5 games has a leaderboard and you have to get to the bottom)). I didn't have enough time making all the 5 games nor did I have the time to polish the 2 that went.
Thanks for sharing your experience.