Downtown Tokyo, Present Day

Although Downtown Tokyo, Present Day is most likely to be mentioned for its bipartite player character - you play the parts of both the hero in a monster B-movie and a cinema-goer in the audience - this game must surely be equally notable for demonstrating how a small set of commands can create a game that is diverse, malleable and above all fun.

All you need to do is fly your helicopter in compass directions, go up and down, and push the button that deploys its grabber - and in this fashion you explore the game's city, picking things up and dropping them experimentally, triggering various humorous responses from the parser, and doing all you can to save a nondescript love-interest from the clutches of a giant mutant chicken. There should be more IF games like this.