Ports of Sega‘s own classic arcade games were often fab on the Megadrive/Genesis, and Flicky is one of the best.
The arcade game came out in 1984, and was a reasonable success. The Sega Megadrive port came much later – in 1991 – and is basically the arcade game in all its cute and colourful glory.
Playing Flicky is still a joy. Leading the birds (Chirps) to the exit, and avoiding the cats (Tigers). It’s simple stuff, and great fun!
More: Flicky on Wikipedia