Two examples:
When my brother and I were assembling the final pieces of the Skolarian Device in 'Zak McKraken and the Alien Mindbenders'
When I realized the solution path to a puzzle was to fling myself/Chell directly through the Aperture Science logo in 'Portal 2'
Question: Is there a game, or even a moment from a game, that you feel is genuinely life affirming?