Super Mario World
If you can get through the slightly nauseating lovey-dovey talk at the start (it’s only a few seconds, but you were warned), the actual gameplay is really cute.
The guy made a level filled with super stars, making it impossible to die or fail — that’d be awkward. He then used coins to spell out love hearts and the “Will You Marry Me?”. Aww.
Hopefully this melts your cold heart for the day ahead.