Joke

The Nemean Lion is a super-tiny, super-easy interactive fiction. It's a comment on the form, in particular the relationship between player and game -- in its own way and medium not much different from You Have to Burn The Rope. You're Heracles, and you need to kill and skin the lion of the title and bring him back to king Eurystheus.

As with 9:05, it would be spoiled by too much advance explanation, so I urge you to play now, which will take about two minutes, and then read the rest of my comments.

(Notice that typing VERBS at any prompt will give you the complete list of commands you can use.)

Spoilers after this point.

Inventory Tetris is a quick joke, and perhaps you don't even really need to play it to get the joke, but the joke is good enough that it's worth noting here.

You've undoubted played any number of games where your character's inventory is, in essence, a square grid, and you position items on the grid -- what you can carry limited not be weight or some other consideration, but by how much you can pack onto the grid.