Taken your blue potions?
Found your secret wall (you just push on it… no need to strain those muscles)…
Are you wearing your green armour?
Yes? Well then…
It's been fifteen years since John Carmack and everyone else at id software came up with that masterpiece that inspired so many other games, revolutionised the first-person shooter (FPS) genre, and generally became target practice for TV vision every time someone killed someone where the media blamed video games.
May you not be eaten by an imp.