When did you last play Lemmings?
Which were the hardest levels for you?
-https://en.wikipedia.org/wiki/Lemmings_(video_game)Lemmings is a puzzle–strategy video game originally developed by DMA Design in Dundee, Scotland and published by Psygnosis for the Amiga in 1991 and later ported for numerous other platforms. The game was programmed by Russell Kay, Mike Dailly and David Jones, and was inspired by a simple animation that Dailly created while experimenting with Deluxe Paint.
The objective of the game is to guide a group of anthropomorphised lemmings through a number of obstacles to a designated exit. To save the required number of lemmings to win, one must determine how to assign a limited number of eight different skills to specific lemmings that allow the selected lemming to alter the landscape, to affect the behaviour of other lemmings, or to clear obstacles to create a safe passage for the rest of the lemmings.
Apparently you can play it online, too...