If you make games using sprite sheets, these animation tricks come in handy for keeping things simple. It doesn’t take more than a few frames to give life to objects and characters.
Learn more from Ari Feldman’s book Designing Arcade Computer Game Graphics.
More info about animating sprites can be found here: Interactive Media and Game Development
Color Flash / sparkle￼
Scissors - simple closed to open movement
Growing / shrinking￼
Swing / pendulum
Open / close￼