Thank you all for your contributions and your support towards the Shmups Wiki!
We have now relocated to https://shmups.wiki/ and will be continuing the growth there. The wiki here is now obsolete.
We will see you at our new home!
❤️ Charlene (CHA-STG)
"Extend" is a term used primarily in arcade games (and especially in shooting games) to describe extra lives / 1UPs. In shooting games, extends are usually rewarded after earning a certain score, or after completing specific in-game tasks.