Mika found out that his girlfriend loved puzzle games and because he was developing one himself, he thought it would be cool to put in the proposal in the game. However his girlfriend actually did not bother playing the game despite his constant urging, and it was only a few years later that she actually did. The reason was because he admitted his plan in an interview with Tips & Tricks magazine, and what he did was he left the interview open on the table along with the game, and the codes she would need to see his proposal. Needless to say it ended well and they are happily married.
This is not the first time we’ve seen games hacked to create marriage proposals, and we don’t expect it to be the last either.