1. Currency usually used in arcades. For each money value you place into an arcade machine, you get a credit.
Usually 1-5 credits are needed to play a game and can accept (depending on the arcade): Tokens, Nickels, Quarters, Swipe Cards, and on some occasions, free.
2. Coins for arcades;a.k.a. tokens.
"Oh my god you just took my credits and spilled them all over the floor!"
"The credits are rolling, it's over!"
May also be used with a gesture; index finger pointed outward and making a circular motion.