If you've noticed already, lasopmorp is promposal backwards, and is exactly the purpose of this game. lasopmorp is a short game that I made for my high school promposal (yes, I actually made a game for this).
I've been brainstorming ideas for my upcoming promposal, trying to pick out one that I could perform reasonably easy, but also put in a lot of effort. Some of my friends already did theirs, which included making a cake with a huge poster sign, and a scavenger hunt spanning the entire school. In the end, I opted to make a short game as a segue into the actual surprise.
The game itself was inspired by a minigame over here (which you should definitely check out; it has way better visuals and audio that I was unable to implement).
Later on, I could expand this project by making any custom message appear (both in the game, and the text below). I have ideas of pre-coding all 26 letters and allowing the user to use a short message as the game, or make a level creator and encode the game (each obstacle, checkpoint, and door) for publishing. For now, these are just thoughts for the future.