I played most of the way through the 1st one recently, and some of the 4th. In the mid-90s, my friend gave me a pirated copy of one of them. Maybe Keen 5? Or Ke

I played most of the way through the 1st one recently, and some of the 4th. In the mid-90s, my friend gave me a pirated copy of one of them. Maybe Keen 5? Or Keen Dreams? It had one of the piracy-protection things where you have to name the enemy to get past, and I only knew the names of 2 enemies. I'd keep exiting and re-starting the game until I found one that I knew. Captain Comic and Commander Keen were my Super Marios until about 1995, because we had a PC but no game consoles.